Faculty Home Page

Aram S. Karakashian

Professor Emeritus of Physics
Department of Physics and Applied Physics

Office: Olney Hall, OH119

Phone: 978-934-3487                 Fax: 978-934-3068

E-mail: Aram_Karakashian@uml.edu

Weekly Schedule             Professional Career at UML  

Course Websites                  Publications

Grants and Contracts     Ph.D.& M.S. Advisees

 


 


Professional career at UMASS Lowell:


1970-77: Assistant Professor (Lowell Technological Institute)
1977-82: Associate Professor (University of Lowell)
1982-2010: Professor (University of Massachusetts-Lowell)
1987-93: Chair, Department of Physics and Applied Physics
1993-2010: Assistant Chair, Department of Physics and Applied Physics
1996-2007: Co-Director, Photonics and Optical Electronics Device Fabrication Center

2010-present: Professor Emeritus

 


 


Background information:

Academic Degrees:

B.A. (1961) Temple University

M.A. (1963) Temple University

Ph.D. (1970) University of Maryland

 

Professional Affiliations:

Member: American Physical Society

Member: American Physical Society/New England Section

1989-90 & 1993-94: Member, APS/NES Executive Committee

1993-94: Chair, APS/NES Executive Committee

Member: Optical Society of America/New England Section

Member: Sigma Pi Sigma

Member: Sigma Xi

 

Research Interests:

Solid State Physics:

Optical properties of thin films,

Surface plasma resonance on metal films and

Defects and radiation damage in semiconductors and optical materials.

 

Photonics and Optoelectronics:

Design and modeling of devices such as waveguides, couplers, and

lasers based on thin film and quantum well structures and quantum well

structures and optical properties of metamaterials  with a negative index

of refraction.

 

Course Websites:

            Physics I

 Physics II

Electro-Optics

Physics with Computers I & II

Solid State Physics

Solid State Optics Seminar

 

Journal Publications:

 

            1. “Phonon Contribution to the Optical Properties of Sodium”,

                A. Karakashian and A. Bardasis, Physics Letters 32A,17 (1970).

 

            2. “Optical Absorption of Sodium”, A. Karakashian and A. Bardasis,

                Physical Review 4B,404 (1971).

 

            3. “Anisotropic Effects in Surface Plasma Oscillations on Metal Grating Surfaces”, R.H.

                Bjork, Y.Y. Teng and A.S. Karakashian, Physics Letters 37A,27(1971).

 

            4. “Behavior of Surface Plasma Oscillations on Grating Surfaces”,

                R.H.Bjork, A.S. Karakashian and Y.Y. Teng, Physical Review 9B,1394(1974).

 

            5. “Surface Plasma Oscillations on Disordered Binary Alloy Surfaces”, D.P. Villanucci,

                Y.Y. Teng and A.S. Karakashian, Physics  Letters 50A,39(1974).

 

            6. “The Vibrational Density of States Amorphous Silicon and Germanium from a Small

    Cluster Model”, R.Nutter, A.S. Karakashian and M. Wilner, Journal of Non-Crystalline

    Solids  43,1(1981).  

 

            7. “Theory of the Response of Schottky Barrier Diodes to Transverse Magnetic Surface

                Waves”, A.S. Karakashian, Physics Letters 85A,463(1981).

 

            8. “Angular Scan Spectrum of a Surface Plasma Excitation on a Schottky Diode”, J.

                Derov, Y.Y. Teng and A.S. Karakashian, Physics Letters 95A,197(1983).

 

            9.“Surface Plasma-Enhanced Internal Photoemission in GaAs Schottky Diodes”,K.

                Torosian, A.S. Karakashian and Y.Y. Teng, Applied Optics 26,2650 (1987).

 

            10. “Angular Scan Spectra in the Visible of Surface Plasma Excitation on a Schottky

                Photodiode”, John Derov, Y.Y. Teng and A.S. Karakashian, Applied Optics

                26,4038(1989).

 

            11. “Radiation-induced Carbon-related Defects in p-type Silicon”, A.R. Frederickson,

                A.S.  Karakashian, P.J. Drevinsky and C.E. Caefer, Journal of Applied Physics

                65,3272(1989).

 

            12. “Theory of a Metal-Semiconductor Photodiode with Grating Coupling of the Incident

               Light to Surface Plasma Waves”, M. Rahman, A.S. Karakashian and S. Broude, Journal

               of Applied Physics 66,438(1989).

 

            13. “A Semi-infinite Periodic Rectangular Barrier Model to Study Surface States”, C.

                Narayan and A.S. Karakashian, Physica  B160,97(1989).

 

            14. "A Model Calculation for Surface Plasma-Enhanced Internal Photoemission in

                Schottky-barrier Photodiodes", M.J.Cazeca, C.C.Chang and A.S.Karakashian,

                Journal of Applied Physics 66,3386(1989).

 

            15. “Surface Plasma Enhanced Quantum Efficiency of a Ag-Ti-n-GaAs  Grating

                Photodiode”, M. Rahman, A.S. Karakashian, S. Broude and D. Gladden, Applied

                Optics 30,2935(1991).

 

            16. “Tuning of the Schottky Barrier Height Using Bi-Metallic Layered Structures”, C.

                Narayan, A.S. Karakashian, G.H. Kegel and Z Rivera, Applied Physics Letters

                59,2541(1991).

 

            17. “Recombination-Induced Random Walk Diffusion of Interstitial Carbon in Silicon”,

                A.R. Frederickson and A.S. Karakashian, Journal of Electronic Materials 21,

                745(1992).

 

            18. “Capacitance-Voltage Measurement of Charged Defect Concentration Profile Near

                Semiconductor Depletion Zones”, A.R. Frederickson and A.S. Karakashian, Journal of

                Applied Physics  77, 1627(1995).

 

            19. "The Stark Effect for Surface States in a Finite Superlattice Structure", S-D. Chen, C.

                 Narayan and A.S. Karakashian, Physica B 228,239(1996).

 

            20."Analysis of MBE Grown Ga1-xAlxAs/Ga1-yAlyAs Dielectric Stack Mirrors Using

                Complex Indices of Refraction",W.J.Strachan,V.Casasanta,J.Reiner,J.D.Geller,

                W.D.Goodhue, and A.S.Karakashian, Journal of Vacuum Science and Technology

     B 14 ,2318(1996).

 

            21." Phonon Mediated Lifetimes in Intersubband Terahertz Lasers, "Vinod Menon,

     W.D. Goodhue, A.S. Karakashian and R.L. Ram Mohan, Journal of Applied Physics

      88, 5262 (2000).

 

22.”Waveguide Design Optimization for a Quantum Cascade Laser Emitting at 77 mm”,

      V. M. Menon, W. D. Goodhue, A. S. Karakashian, et al., Physica E 7, 52(2000).

 

23.”Dual-frequency Quantum Cascade Terahertz Emitter”, V. M. Menon,

      W. D. Goodhue, A. S. Karakashian, et al., Applied Physics Letters 80, 2454(2002).

 

24. “Role of Interface Phonons in Quantum Cascade Terahertz Emitters”, V.M. Menon,

      L.R. Ram-Mohan, W.D. Goodhue, A.J. Gatesman, A.S. Karakashian,

      Physica B 316, 212(2002).

 

25. “Phonon Engineered Quantum Cascade Terahertz Emission”,V.M. Menon,

      L.R.Ram-Mohan, W.D. Goodhue, A.S. Karakashian, A. Naweed,

      A. Gatesman, J. Waldman, Physica E 15, 197(2002).

 

26.”Evidence for Radiative Damping in Surface-Plasmon-Mediated Light Transmission Through

     Perforated Conducting Films”,Ahmer Naweed, Frank Baumann, William A. Bailey, Jr.,

     Aram S. Karakashian, and William D. Goodhue, Journal of the Optical Society of America B

     20, 2534 (2003).

 

            27.”Observation of Negative Differential Resistance in GaAlAs Single-Barrier           

                  Heterostructure at Room Temperature”, Stephen J. Emelett, William D. Goodhue,

                  Aram S. Karakashian and Kenneth Vaccaro, Journal of Applied Physics 95 , 1 (2004).

 

            28."Reflection of Visible Light on the Anisotropic Slab of DPS-DNG Layers",

                  J.H.Shahbazian and A.S.Karakashian,Journal of the Optical Society of America B 26, 1

                (2009).

 

            29."Linear Electro-optical Effect on DPS-DNG Layered Structure",J.H.Shahbazian and A.S.Karakashian,

                  International Journal of Modern Physics  B 23, 3205 (2009).

 

            30."Magneto-optical Effect of DPS-DNG Layered Structure",J.H.Shahbazian and A.S.Karakashian,

                   Journal of the Optical Society of America B 26, 2342 (2009).

 

Conference Proceedings:

 

            1. “Surface Plasma Wave Excitation of MIS Photovoltaic Cells”,

                W. Berg and A.S. Karakashian, 9th European Photovoltaic Solar

                Energy Conference and Exhibition, Albert-Ludwig-University,

                Freiberg, F.R. Germany, 25-29 September 1989.

 

2. “Modelling of a Ag/Diamond/n-GaAs Photodiode with Grating Coupling of the     

    Incident Light to Surface Plasma Waves”, D. Barman, M. Rahman, A. S. Karakashian,

    A. Altshuler and S. Broude, Material Research Society Program Boston, p.99 (1989).

 

            3. “The Study of Schottky Barrier Height of Alloy Semiconductor

                Contacts”, C. Narayan, G.H. Kegel and A.S. Karakashian, Material

                Research Society Extended Abstracts EA-21, 79 (1990).

 

            4. “DLTS Study of Optoelectronic Devices in the Dynamic Regime”,

                S. Mil’shtein, D. Tripp, A. Karakashian, Defects in Materials

                Symposium, Boston MA, USA: 26-29 Nov. 1990 (Pittsburgh PA,

                USA:  Material Research Society 1991) p. 547-553.

 

            5. “Development of a Computer Program for the Determination of

                Optical Constants of Radiation Damaged Optical Elements

                Using Classical Oscillator Fit to Reflectance and/or

                Transmittance Data”, Miftahur Rahman, C. Yang, K.S. Chiu, A.S. Karakashian, C.

                Karp, T. Mooney and G. Al-Jumaily, Material Research Society Symposium

                Proceedings 247, 889 (1992).

 

            6. “Characterization of n-GaAs-Au Schottky Diodes as Grating Coupled Photodetectors”,

               K. Krishnaswami, A.S. Karakashian and C. Wong in Material Research Society, Boston

               MA,  USA: 30 Nov.-4   Dec. 1992 (Pittsburgh PA, USA: Material Research Society

               1993) p. 701-707.

 

7. “Interfacial Structure Studies of Metal Bilayer Films Using Transmission Electron

    Microscopy”, Gi-Ho Kim, A. S. Karakashian and Changmo Sung, Material Research

    Society Program Boston, p.101 (1993). 

 

            8. "Analysis of MBE Grown Ga1-xAlxAs/Ga1-yAlyAs Dielectric Stack Mirrors Using

                Complex Indices of Refraction", W.J.Strachan,J.Reiner,W.D.Goodhue,

A.S.Karakashian,V.Casasanta and J.D.Geller, Fifteenth North American Conference

on  MBE - Maryland, September 17-21,1995.

 

9. "A Comparitive Study of Surface Plasma Enhanced Grating Coupled Detectors",           

     Kannen Krishnaswami, Robert J. Tremblay, William D. Goodhue and Aram S.

     Karakashian, presented at Photonics West, San Jose CA, 8-14 February, 1997 in the

     Proceedings of the SPIE 2999, 391 (1997).                      

 

10. "Submillemeter Quantum Cascade Laser in the GaAs/AlGaAs System",

     V. M. Menon, W. D. Goodhue, A. S. Karakashian, in Infrared Technology

     and Applications XXIV in the SPIE Proceedings 3436, part 2, 970 (1998).

 

11. "Waveguide Design Optimization for a Quantum Cascade Laser Emitting at 77 um",

      Vinod Menon, W.D.Goodhue, A.S.Karakashian and L.R.Ram Mohan,

      5th International Conference on Intersubband Transitions in Quantum Wells (ITQW '99)

      Bad Ischl, Austria, Proceedings in Physica E, 52-57 (2000).

 

12. “Jet-Based Photonic Crystals for Terahertz Technology – A Need for Higher Resolution”,

      Jin Li, Thomas A. Horgan, Andrew J. Gatesman, Robert H. Giles, Aram S. Karakashian

      and William D. Goodhue, Material Research Society Symposium Proceedings, 860E:

      Materials Issues in Solid Freeforming, LL4.3 (2005).

 

 

Invited Talks and Conference Presentations:

 

            1."Model of the Charge Distribution in the p-HEMT Structure", A. S. Karakashian and

               V.M. Menon, presented at Raytheon Microelectronics Center, Andover, MA,

               August 31, 1999.

 

            2.”Investigation and Application of Metamaterials in the Visible Regime”, Aram Karakashian,

            Alkim Akyurtlu and William Goodhue, AFOSR Program Review, Nanoelectronics, Negative

            Index Materials and Superconducting Electronics, July 26-28,2005, University of California

             San Diego.

 

            3.”Metamaterials for the Visible Regime”, A. Akyurtlu, A-G. Kussow, A. Semichaevsky and

             A. S. Karakashian, presented at 2006 IEEE AP-S International Symposium and USNC/URSI

            National Radio Science Meeting, July 9-14 2006, Albuquerque, NM.

 

            4.”A Test Bench Device for the Characterization of Metamaterials in the Optical Regime”,

            Nicholaos Limberopoulos, Vasilios Limberopoulos, Alkim Akyurtlu, Aram S. Karakashian and

            William D. Goodhue, presented at 2006 IEEE AP-S International Symposium and USNC/URSI

            National Radio Science Meeting, July 9-14 2006, Albuquerque, NM.

  

            5.”Propagation of Electromagnetic Waves in a One Dimensional Photonic Crystal with DPS/DNG

 Layers”, J. H. Shahbazian and A. S. Karakashian, presented at the APS Annual Meeting, March 2007

Denver CO.

 

6.”Surface Plasmon Resonance Test Bench Device for the Validation of Optical Metamaterials”,

Nicholaos Limberopoulos, Gerald S. Banks, Alkim Akyurtlu, Aram S. Karakashian, William Goodhue

and Vasilios Limberopoulos, presented at 2007 URSI North American Radio Science Meeting,

July 22-26, Ottawa, Ontario CANADA

 

7.”Non-Bragg Band Gaps in a One Dimensional Photonic Crystal with DPS/DNG Layers”,

 J.H. Shahbazian and A.S. Karakashian, presented at III International Physics Congress,

 October 10-12, 2007, Hermosillo, Mexico.

 

8."Properties of One Dimensional Layered DPS/DNG Photonic Crystal: Transmission and Reflection",

J.H. Shahbazian and A.S.Karakashian, presented at NES APS, April 2008, New London CT.

 

9."Optical Effects in One Dimensional Photonic Crystal with DPS/DNG Layers",

J.H. Shahbazian and A.S.Karakashian, presented at SPIE Europe, Metamaterials, April 2008,

Strasbourg, France.

 

10."Band Structure of Photons in Layered DPS/DNG Materials", J.H. Shahbazian and A.S.Karakashian,

presented at APS, April 2008, St. Louis MI.

 

11. ”Design, Fabrication and Validation of Optical Metamaterials”,N.Limberopoulos, A.Akyurtlu, A.S.Karakashian,

W.D.Goodhue, IEEE AP-S International Symposium and USNC/URSI National Radio Science Meeting, San Diego,

CA July 7, 2008.

 

12."Reflection of Electromagnetic Waves on Anisotropic DPS/DNG Layers", J.H. Shahbazian and

A.S.Karakashian, presented at NES APS, October 2008, UMass Boston Boston MA.

 

13. ”Characterization of Optical Metamaterials”,N.Limberopoulos, A.Akyurtlu, A.S.Karakashian,

W.D.Goodhue and M.J.Coulombe, Material Research Society, Boston, MA, December 2, 2008.

 

 

Abstracts:

 

            1. “A Further Investigation of Surface Plasma Oscillations on Metal  Grating Surfaces”,

                R.H. Bjork, Y.Y. Teng and A.S. Karakashian, Bulletin of the American Physical

                Society 16, 543 (1971).

 

            2. “Surface Plasma Oscillations on Disordered Binary Alloy Surfaces”, Y.Y. Teng, D.P.

Villanucci and Aram S. Karakashian, Bulletin of the American Physical Society 20,    589  (1975).

 

            3. “Theory of the Response of Schottky Barrier Diodes to Surface Plasma Waves”, A.S.

                Karakashian, Bulletin of the American Physical Society 25, 598 (1980).

 

            4. “The Photovolatic Effect on Schottky Diodes Due to the Surface Plasma Excitation”,

                Y.Y. Teng, D.K. Dalrymple and A.S. Karakashian, Bulletin of the American Physical

                Society 26, 618 (1981).

 

            5. “Vibrational Density of States of Amorphous Silicon and Germanium from a Small

                Cluster Model”, M. Wilner, R. Nutter, and A.S. Karakashian, Bulletin of the American

                Physical Society 26, 618 (1981).

 

            6. “Angular Scan Spectrum of a Surface Plasma Excitation on a Schottky Diode”, J.

   Derov, Y.Y. Teng and A.S. Karakashian, Presented at the Joint Spring Meeting of 

   APS-NES and AAPT-NES at Boston University (21-22 May 1982).

 

            7. “Internal Photoemission in Schottky Barrier Diodes due to the Surface Plasma

                Resonance”, A.S. Karakashian and C.C. Chang, Bulletin of the American Physical

                Society 28, 19 (1983).

 

            8. “Optical Constants of Alloy Surface Barrier Contacts”, Y. Lin, A.S. Karakashian and

                Y.Y. Teng, Bulletin of the American Physical Society 28, 43 (1983).

 

            9. “The Excitation of the Surface Plasma Resonance in the Visible Range on a Schottky

                Barrier Diode Using a Prism Coupler”, A.S. Karakashian, J. Derov and Y.Y. Teng,

                Bulletin of the American Physical Society 30, 710 (1985).

 

            10. “Excitation of Surface Plasma Oscilations on Schottky-Barrier Diodes with Grating

                  Surface Geometries”, J. Lelanc, Y.Y. Teng and A.S. Karakashian, Bulletin of the

                 American Physical Society 30, 1136 (1985).

 

11. “Angular Scan Spectrum of a Surface Plasma Excitation on a Schottky Diode”,

      Kaspar Torosian, Aram S. Karakashian and Ye-Yung Teng,

      Bulletin of the American Physical Society 31, 121 (1986).

 

            12. “Characterization of GaAs and GaAs Devices”, A.W. Bielech, A.S. Karakashian and

                  K. Prasad, Bulletin of the American Physical Society 31, 121 (1986).

 

13. “The Interaction of a Surface Plasma Wave with a Surface Acoustic Wave”,

      G. Phillips and A.S. Karakashian, Bulletin of the American Physical Society 31, 122 (1986).

 

            14. “A Rutherford Backscattering Spectroscopy (RBS) System for Studying the Diffusion

                of Tin into GaAs”, D.Ila, A.S. Karakashian  and G.H. Kegel, Bulletin of the American

                Physical Society 31, 124 (1986).

 

            15. “Thermal Diffusion of Tin into Gallium Arsenide at 400°C”, D. Ila, A.S. Karakashian

                and G.H. Kegel, Bulletin of the American Physical Society 32, 1405 (1987).

 

            16. “Acoustic Modulation of Optical Absorption of a Class of Surface Active

                Polydiacetylenes”, S.S. Kumar, A.S. Karakashian and S.K. Tripathy, Bulletin of the

                American Physical Society 33, 1259 (1988).

 

            17. “Enhanced Quantum Efficiency Photodetectors Grating Coupling to Surface Plasma

                Waves”, M. Rahman, A.S. Karakashian, S. Broude and D. Gladden, Bulletin of the

                American Physical Society 33, 40 (1988).

 

            18. “Electron Microscopy and Electrical Characterization of Grating Photodetectors”, M.

                Rahman, A.S. Karakashian, S. Broude and D. Gladden, Bulletin of the American

                Physical Society 33, 1808 (1988).

 

            19. “Theory of MS and MIS Photodetectors with Grating Coupling of Incident Light to

      SPW”, M. Rahman, A.S. Karakashian and S. Broude, Bulletin of the American Physical

      Society 33, 1809 (1988).

 

            20. “Rutherford Backscatter Study of Al-Ag Alloy Formation by the Flash Evaporation

                Technique”, C. Narayan, D. Ila, A.S. Karakashian and G.K.R. Kegel, Bulletin of the

                American Physical Society 33, 1810 (1988).

 

            21. “Determination of the Optical Constants of Thin Al­­xAg1-x Alloy Films by the ATR

                Methods”, S.M. Rahman, Y.S. Lin, A.S. Karakashian and Y.Y. Teng, Bulletin of the

                American Physical Society 33, 1811 (1988).

 

22. “A Model for Surface States at a Metal-Semiconductor Interface”, C. Narayan and

      A.S. Karakashian, Bulletin of the American Physical Society 34, 1270 (1989).

 

23. “Determination of the Optical Constants and Thickness of the Oxidized Aluminum

      Film Using the Attenuated Total Reflection and Simplex Method”, C. Lin, C. Wong

      and A.S. Karakashian, Bulletin of the American Physical Society 35, 1544 (1990).

 

            24. “Some Experimental Aspects of Rutherford Backscattering Technique”, C. Narayan,

     C. Jen, G.H.R. Kegel and A.S. Karakashian, Bulletin of the American Physical Society

     35, 1545 (1990).

 

            25. “Electrically- and Optically-Induced Migration, Accumulation and Transformation of

                  Electrically Active Defects in Insulators and Semiconductors”, A.R. Fredrickson and

                  A.S. Karakashian, Bulletin of the American Physical Society 38, 1650 (1993).

 

            26. “Optical Response of Grating Coupled Detectors", Kannan Krishnaswani, Robert

                 Tremblay, A.S. Karakashian and C. Wong, Bulletin of the American Physical Society

                 39, 1275 (1994).

 

            27. "Surface States and Wave Propagation of a Semi-infinite Superlattice Structure",S-D.

                Chen, C.Narayan and A.S.Karakashian, Bulletin of the American Physical Society 40,

                1442 (1995).

 

            28. "An Experimental Study of the Optical Properties of AgxAl1-x Films by Surface

                Plasma Excitation", Heng-Long Yang, A.S.Karakashian and C.Wong, Bulletin of the

                American Physical Society 40, 1445 (1995).

 

29. "Reflectivity and Absorption of a Periodic GaAs/AlxGa1-xAs Structure", J.Reiner and 

      A.S.Karakashian, Bulletin of the American Physical Society 40, 1445 (1995).

 

30. "Sinusoidal Metallic Grating Coupler on an Asymmetric Planar Waveguide",

      David P. Tremblay and A.S.Karakashian, Bulletin of the American Physical Society

      41, 1204 (1996).

 

            31. "An Experimental Measurement of the Optical Constants of Thin CrAl Films Using

                 Surface Plasma Excitation", J.C.Lee, C.Wong, and A.S.Karakashian, Bulletin of the

                 American Physical Society 41, 1205 (1996).

 

32. "Intraband and Interband Oscillator Strengths and Transition Probabilities for Various

      AlGaAs/GaAs/InGaAs SCH Structures", A.Backer and A.S.Karakashian, Bulletin of  the

      American Physical Society 41, 1205 (1996).

 

33. "Design of a Far-infrared Quantum Cascade Laser Emitting at 77 µm", V. M. Menon,

      W. D. Goodhue, A. S. Karakashian and L. R. Ram-Mohan, at the APS Centennial

       Meeting, Atlanta, GA, March 20-26, 1999 in Bulletin of the American Physical Society

       44, 1748 (1999).

 

34.”Propagation of Electromagnetic Waves in a One Dimensional Photonic Crystal with

      DPS/DNG Layers”, Joseph Shahbazian and Aram Karakashian,

       http://meetings.aps.org/link/BAPS.2007.MAR.Y31.5

 

35."Properties of One Dimensional Layered DPS/DNG Photonic Crystal: Transmission and Reflection",

      Joseph Shahbazian and Aram Karakashian, http://meetings.aps.org/Meeting/NES08/Event/86417

 

Book Reviews:

 

            1. Introduction to Solid State Physics; 7th Edition by Charles Kittel, John Wiley & Sons,

               Inc., New York, 1996 published in Molecular Crystals and Liquid Crystals 293, 328

               (1997).

 

            2. Solid State Physics: Problems and Solutions, by Laszlo Mihaly and Michael C. Martin,

               John Wiley & Sons, Inc., New York , 1996 published in Molecular Crystals and Liquid

               Crystals 309, 297 (1998).

 

            3. Principles of Condensed Matter Physics, by P.M. Chaikin and T.C. Lubinsky,

              Cambridge University Press, Cambridge U.K., 2000 published in Molecular Crystal

               and Liquid Crystals 369, 275 (2001) and 373, 251 (2002).

 

Technical Reports:

 

            1. “Atomic Wavefunctions”, A.S. Karakashian, Temple University (1963).

 

            2. “Straight Edge Diffraction Due to a Finite Source”, A.S. Karakashian, Temple

                University (1963).

 

            3. “A Two Dimensional Band Calculation”, A.S. Karakashian, Temple University (1964).

 

            4. “Laser Power Measurment of Q-Switched Ruby Lasers”, A.S. Karakashian, Frankford

                Arsenal, Philadelphia, PA (1965).

 

            5. “The Transverse Dielectric Tensor for Alkali Metals”, A.S. Karakashian, University of

                Maryland (1970).

 

            6. “Progress Report: Development of Waveguiding Structures in the Visible Regime

                Using Nanoscale Metamaterials”, with Alkim Akyurtlu and William Goodhue,

                University of California, San Diego, July 27,2005.

 

7.”Progress Report: A Test Bench Device for the Characterization of Metamaterials

    in the  Optical Regime“, with Nickolas Limberopoulos, Vasilios Limberopoulos,

    Alkim Akyurtlu and William Goodhue, Albuquerque, NM, July 14,2006.

 

Grants and Contracts:

 

            1. National Science Foundation, “The Response of Schottky-Barrier Diodes to Surface

                Plasma Waves”, with Y.Y.Teng (1979-1981).

 

            2. National Science Foundation, “A Study of the Surface Plasmon State in Metals and

                Disordered Binary Alloys”, with Y.Y.Teng (1979-1981).

 

3. Piconics, Inc., “The Development and Testing of a Magnetron Sputtering Apparatus

    for Making Thin Film Resistors” (1981).

 

            4. Barr Associates, “Radiation Effects Study of Optical Elements” (1989-1991).

 

             5. Diamond Force Corporation, "Feasibility of Determining the Gold Content of Alloys

                 Using Either Reflectance or Thermal Conductance Measurements", with W.Goodhue

                 (1995-1996).

 

6. Raytheon Company, Microelectronics Center, "Modeling the Charge Distribution in the

     pHEMT Structure and Determining Energy Levels in the Quantum Wells",

     with K. Prasad (1999-2000).

 

7. Air Force Office of Scientific Research, “Development of Waveguiding Structures in the

    Visible Regime Using Nanoscale Metamaterials”, with Alkim Akyurtlu and

    William Goodhue (2005 – 2008).

 

Patents Granted:

 

U.S. Patent Office “Systems and Methods Using Phonon Mediated Intersubband Laser”

      U.S. Patent Number US 6,829,269 B2, Issued on 12/7/04, To William Goodhue,

      L. Ramdas Ram-Mohan, Aram Karakashian and Vinod Menon

 

Doctoral Dissertations Supervised or Co-supervised:

 

            1. “Calculations of the Vibrational Density of States of Amorphous Germanium and

                Silicon”, Robert F. Nutter (1979).

 

            2. “Internal Photoemission in Schottky Barrier Diodes Due to the Surface Plasma

                Resonance”, Ching-Chung Chang (1982).

 

3.“The Determination of the Optical Constants of Thin Binary Alloy Films Using

      Surface Plasma Techniques”, Yih-Shung Lin  (1984).

 

            4. “Study of Tin Diffusion into Gallium Arsenide by Rutherford Backscattering

                Spectroscopy”, Daryush Ila (1987).

 

            5. “Surface Plasma Enhanced Quantum Efficiency of a Ag-Ti-nGaAs Junction”, Miftahur

                Rahman (1988).

 

            6. “Hot Electron Transport Using Surface Plasma Enhanced Photo-injection in Schottky

                Diodes”, Mario J. Cazeca (1988).

 

7. “A Prism Coupled Surface Plasma Wave Excited Metal- Insulator-Semiconductor

    Solar Cell”, William M. Berg (1990).

 

            8. “Recombination Enhanced Defect Diffusion in Semiconductor Devices, Carbon in

               Silicon”, Arthur Robb Frederikson (1991).

 

            9. “Tuning of the Schottky Barrier Height Using Bi-Metallic Layered Structures”,

              Chandrika Narayan (1992).

 

            10. “Surface States in Superlattice Structures”, Shyh-Dean Chen (1995).

 

            11.”Study of the Variation of the Optical Constants of the Aluminum-based Multilayer

                 Thin Films”, Henglong Yang (1997).

 

            12. "A Modeling of the Monolithic SHOC Laser Module for Optical Output

                 Optimization", Augustine Backer (1999).

 

            13. "Design, Fabrication and Characterization of Quantum Cascade Terahertz Emitter",

                  Vinod Menon (2001).

 

            14. “Fabrication and Analysis of Photonic Crystals in the Near Terahertz and Terahertz”,

                   Jin Li (2006).

 

            15."Propagation of Electromagnetic Waves in a One Dimensional Photonic Crystal with

                  DPS-DNG Layers", Joseph Shahbazian (2009).

 

Masters Theses Supervised or Co-supervised:

 

1.” Generation and detection of surface acoustic waves on quartz”, Gregory Phillips (1984).

 

2.” Study of the aging effect in the magnesium fluoride coated silver film system”, Richard Migliaccio (1985).

 

3.” Characterization of gallium arsenide and gallium arsenide devices”, Andrew Bielech (1985).

 

4.” Surface plasma enhanced photo injection in gallium arsenide Schottky diodes”, Kaspar Torosian (1985).

 

5.” Determination of the optical constants of thin aluminum(x)silver(1-x) alloy films by the ATR method”, Shahina Rahman (1987).

 

6.” Fabrication and testing of MIS solar cells”, Frank Walters (1988).

 

7.” Theoretical and experimental study of the linear response of a surface plasma wave observed on a thin aluminum film using the attenuated total reflection technique”, Chen-Hau Lin (1989).

 

8.” Radiation effects on the properties of optical components for space applications”, Kong She Chiu (1991).

 

9.” Measurement of the optical constants of gamma irradiated optical materials”,Chaodung Yang (1991).

 

10.” An experimental study of the optical properties of thin silver(x) aluminum(1-x) films by surface plasma excitation”, Henglong Yang (1994).

 

11.” Microstructural studies of metal layer films (aluminum/chromium) using transmission electron microscope”, Gi-Ho Kim (1994).

 

12.” Detection of grating coupled surface plasma waves on Ag-nGaAs photodiodes”, Robert Tremblay (1995).

 

13.” Feasibility of embedding large aperture guided-wave mirror in an optical slab waveguide”, Huseyin Sari (1995).

 

14.” Microstructural studies of aluminum composites and copper / silicon carbide functionally gradient materials”, Ju-Hwan Choi (1995).

 

15.”Grating coupled detectors”, Kannan Krishnaswami (1995).

 

16.” An experimental measurement of the optical constants of thin chromium aluminide films using surface plasma excitation”, Jui-Chu Lee (1996).

 

17.” Calculating and optimizing the coupling efficiency of a sinusoidal grating output coupler on an asymmetric waveguide”, Wen-Han Chang (1996).

 

18.” Sinusoidal gold grating coupler on an asymmetric planar waveguide”, David Philip Tremblay (1996).

 

19.” Evanescent wave coupling of a diode laser to a planar waveguide”, Jennifer Rossler (1997).

 

20.” Design, modeling, fabrication and characterization of a hybrid triangular barrier photodiode (single-barrier resonant photodiode)”, Stephen Emelett (2003).

 

21.” Design, fabrication and characterization of silicon nitride based MEMS spatial light modulators”, Gregory Griffith (2004).

        

                             DEPARTMENT OF PHYSICS AND APPLIED PHYSICS

                                         SCHEDULE FOR A. S. KARAKASHIAN

OFFICE: OH 119                                                                                        PHONE: (978) 934-3487

                                          E-MAIL: Aram_Karakashian@uml.edu

SPRING SEMESTER 2012                                                           LAST UPDATE:2/6/12

 

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