Invited Papers & Book Chapters

Plenary Talk in SPIE Optics Photonics, Optical Engineering Applications 2008, SPIE San Diego, California, USA : Infrared Retina Using Nanoscale Quantum Dots and Strain Layer Superlattices

Quantum Dots-in-a-Well Focal Plane Arrays

Quantum Dot Based Infrared  Focal Plane Arrays

Optoelectronic Properties of Self-Assembled InAs/InGaAs Quantum Dots, III-V Semiconductor Heterostructures:Physics and Devices (2003) Editor:Will Z.Cai

Quantum Dot Infrared Detectors and Sources

Hot Dot Detectors

J. R. Andrews,S. R. Restaino, T. E. Vandervelde, J. S. Brown, Y. Sharma, S. Lee, S. W. Teare,  A. Reisinger,M. Sundaram, and S. Krishna, "Comparison of Long-Wave Infrared Quantum-Dots-in-a-Well and Quantum-Well Focal Plane Arrays", IEEE TRANSACTIONS ON ELECTRON DEVICES, VOL. 56, NO. 3, MARCH 2009

A. Alizadeh, D. Hays, S. T. Taylor, C. Keimel, K. R. Conway,L. Denault, K. Krishnan, V. H. Watkins, R. Neander,J.S. Brown, A. Stintz, S. Krishna, M. Blumin, I. Saveliev,H. E. Ruda, E. Braunstein, and C. Jones, “Epitaxial growth of 20 nm InAs and GaAs quantum dots on GaAs through block copolymer templated SiO2 masks” JOURNAL OF APPLIED PHYSICS 105, 054305(2009)

V. Gopal E. Plis, J.-B. Rodriguez, C. E. Jones, L. Faraone,  and S. Krishna, “Modeling of electrical characteristics of midwave type II InAs/GaSb strain  layer superlattice diodes”, JOURNAL OF APPLIED PHYSICS 104, 124506, (2008)

A Barve, S Shah, J Shao, T Vandervelde, R Shenoi, W Jang, and S Krishna, "Reduction in dark current using resonant tunneling barriers in quantum dots-in-a-well long wavelength infrared photodetector" Applied Physics Letters 93, 131115 (2008)

S. Jit, A. Bandara Weerasekara, R. C. Jayasinghe, S. G. Matsik, A. G. Unil Perera, M. Buchanan, G. Irwin Sproule, H. C. Liu, A. Stintz, S. Krishna, S. P. Khanna, M. Lachab, and E. H. Linfield, “Dopant Migration-Induced Interface Dipole Effect in n-Doped GaAs/AlGaAs Terahertz Detectors”,  IEEE ELECTRON DEVICE LETTERS, VOL. 29, NO. 10, OCTOBER 2008

E. Plis, H. S. Kim, G. Bishop, S. Krishna, K. Banerjee, and S. Ghosh, ”Lateral diffusion of minority carriers in nBn based type-II InAs/GaSb strained layer superlattice detectors”, Appl. Phys. Lett. 93, 123507 (2008)

P. Martyniuk, S. Krishna, and A. Rogalski, “Assessment of quantum dot infrared photodetectors for high temperature  Operation”, JOURNAL OF APPLIED PHYSICS 104, 034314 (2008)

T. Vandervelde, M.Lenz, E. Varley, A. Barve, J. Shao, R.V. Shenoi, D. Ramirez, W.Jang, Y.Sharma,and Sanjay Krishna, “Quantum Dots-in-a-Well Focal Plane Arrays” IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, VOL. 14, NO. 4, JULY/AUGUST (2008)

H.S. Kim, E. Plis, J.B. Rodriguez, G. Bishop, Y.D. Sharma and S. Krishna, "N-type ohmic contact on type-II InAs/GaSb strained layer superlattices", ELECTRONICS LETTERS  Vol. 44 No. 14 (2008)

R. V. Shenoi,  R. S. Attaluri, A. Siroya, J. Shao, Y. D. Sharma, A. Stintz, T. E. Vandervelde, and S. Krishna, “Low-strain InAs/InGaAs/GaAs quantum dots-in-a-well infrared photodetector”, J. Vac. Sci. Technol. B 26(3) PP-1136-1139 May/Jun (2008)

G. Bishop, E. Plis,a_ J. B. Rodriguez, Y. D. Sharma, H. S. Kim, L. R. Dawson, and S. Krishna, "nBn detectors based on InAs/GaSb type-II strain layer superlattice”,  J. Vac. Sci. Technol. B 26(3) PP-1145-1148 May/Jun (2008)

T. V. Chandrasekhar Rao and J. Antoszewski J. B. Rodriguez, E. Plis, S. Krishna And L. Faraone, “Quantitative mobility spectrum analysis of carriers in GaSb/InAs/GaSb superlattice”, J. Vac. Sci. Technol. B 26(3) PP1081-1083, May/Jun (2008)

H. S. Kim, E. Plis, J. B. Rodriguez, G. D. Bishop, Y. D. Sharma, L. R. Dawson, S. Krishna, J. Bundas, R. Cook, D. Burrows, R. Dennis, K. Patnaude, A. Reisinger, and M. Sundaram, "Mid-IR focal plane array based on type-II InAs/GaSb strain layer superlattice detector with nBn design” Appl. Phys. Lett. 92, 183502 (2008)

Ahmed I. Lobad, E. A. Pease, R. Dawson, Sanjay Krishna, and L. A. Vern Schlie, “Extraction of radiative and nonradiative rates in Sb based midwave infrared lasers using a novel approach”, REVIEW OF SCIENTIFIC INSTRUMENTS 79, PP-033904(2008)

R. P. Prasankumar, R. S. Attaluri, R. D. Averitt, J. Urayama, N. Weisse- Bernstein, P. Rotella, A. D. Stintz, S. Krishna, and A. J. Taylor, “Ultrafast carrier dynamics in an InAs/InGaAs  quantum dots-in-a-well heterostructure”,  Vol. 16, No. 2 pp. 1165 OPTICS EXPRESS (2008)

T. V. Chandrasekhar Rao,a_ J. Antoszewski, and L. Faraone,J. B. Rodriguez, E. Plis, and S. Krishna, “Characterization of carriers in GaSb/InAs superlattice grown on conductive GaSb substrate”, APPLIED PHYSICS LETTERS 92, 012121 (2008)

A. Khoshakhlagh, J. B. Rodriguez, E. Plis, G. D. Bishop, Y. D. Sharma, H. S. Kim, L. R. Dawson, and S. Krishna, “Bias dependent dual band response from InAs/Ga„In…Sb type II strain layer superlattice detectors”, APPLIED PHYSICS LETTERS 91, 263504(2007)

S. Mallick, K. Banerjee, S. Ghosh,E. Plis, J.B.Rodriguez, S. Krishna, and C. Grein, “Ultralow noise midwave infrared InAs–GaSb strain layer superlattice avalanche photodiode” , APPLIED PHYSICS LETTERS 91, 241111 (2007)

S. Mallick, K. Banerjee, S. Ghosh, J. B. Rodriguez, and S. Krishna, “Midwavelength Infrared Avalanche Photodiode Using InAs–GaSb Strain Layer Superlattice”, IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 19, NO. 22, NOVEMBER 15(2007)

E. Plis, J. B. Rodriguez, H. S. Kim, G. Bishop, Y. Sharma,  R. Dawson, S.J.Lee, C.E.Jones, V. Gopal.and S. Krishna, "Type II InAs/GaSb strain layer superlattice detectors with p-on-n polarity", APPLIED PHYSICS LETTERS 91, 133512 (2007)

K Srinivasana, O Painter, A Stintz and S Krishna, , "Single quantum dot spectroscopy using a fiber taper waveguide near-field optic", APPLIED PHYSICS LETTERS 91, 091102(2007)

E. Varley, M. Lenz, S. J. Lee, J. S. Brown, D. A. Ramirez, A. Stintz, and S. Krishna, Axel Reisinger and Mani Sundaram, “Single bump,two-color quantum dot camera”, APPLIED PHYSICS LETTERS 91, 081120(2007)

A.B. Weerasekara, M.B.M. Rinzan, S.G. Matsik, A.G.U. Perera, M. Buchanan, H.C. Liu, G. von Winckel, A. Stintz and S. Krishna, “Si doped GaAs/AlGaAs terahertz detector and phonon effect on the responsivity” Infrared Physics & Technology, 50,194-198 (2007)

P.V.V.   Jayaweera, S.G. Matsik, K. Tennakone, A.G.U. Perera, H.C. Liu and S. Krishna,"Spin split-off transition based IR detectors operating at high temperatures"  Infrared Physics & Technology, 50, 279-283 (2007)

J Rodriguez, E Plis, G Bishop, Y Sharma, H Kim, L Dawson and S Krishna, "nBn structure based on InAs/GaSb type-II strained layer superlattices"APPLIED PHYSICS LETTERS 91, 043514(2007)

A. B. Weerasekara, M. B. M. Rinzan, S. G. Matsik, A. G. U. Perera, M. Buchanan, H. C. Liu, G. von Winckel, A. Stintz, and S. Krishna  "n-type GaAs/AlGaAs Heterostructure detector with a 3.2 threshold frequency” Optics Letters, 32 (10), 1335-1337, (2007)

S Gunapala, S Bandara, C Hill, D Ting, J Liu, Sir B Rafol, E Blazejewski, J Mumolo, S Keo, S Krishna, Y Chang and C Shott, "Demonstration of 640x512 Pixels Long-Wavelength Infrared (LWIR) Quantum-Dot Infrared Photodetector (QDIP) Imaging Focal Plane Array”, Infrared Physics & Technology 50, pp-149-155(2007)

R Attaluriand, S Krishna, M Matthews, R Steed, M Frogley and C Phillips, "Transient photoconductivity measurements of carrier lifetimes in an InAs/In0.15Ga0.85As dots-in-a-well detector"Applied Physics Letters 90, 103519(2007)

S Gunapala, S Bandara, C Hill, D Ting, J Liu, Sir B Rafol, E Blazejewski, J Mumolo, S Keo, S Krishna, Y Chang and C Shott, "640x512 Pixels Long-Wavelength Infrared (LWIR) Quantum-Dot Infrared Photodetector (QDIP) Imaging Focal Plane Array", IEEE Journal of Quantum Electronics, Vol 43, No 3, March(2007)

R. S. Attaluri, J. Shao, K. T. Posani, S. J. Lee, J. S. Brown, A. Stintz, and S. Krishna "Resonant cavity enhanced InAs/In0.15Ga0.85As dots-in-a-well quantum dot infrared photodetector" J. Vac. Sci. Technol. B 25, 1186 (2007)

T.E. Vandervelde, J. Shao, A. Stintz, and S. Krishna, "Investigation of Shape Engineering in InAs Quantum Dots Using Various Capping Materials", MRS Fall Meeting 2007, Boston, MA

Y. Sharma, G.Bishop, H.S. Kim, J.B. Rodriguez, E. Plis, G. Balakrishnan, L.R. Dawson, D.L. Huffaker and S. Krishna, “Type II Strain Layer Superlattices (SLS’s) grown on GaAs Substrates”,  The 20th Annual Meeting of the IEEE Lasers and Electro-Optics Society, 2007. LEOS 2007.

H. S. Kim, G. D. Bishop, J. B. Rodriguez, Y. Sharma, E. Plis, L. R. Dawson, and S. Krishna, “Suppressed Surface Leakage Current Using nBn Infrared Detector Based on Type II InAs/GaSb Strain Layer Superlattices”, The 20th Annual Meeting of the IEEE Lasers and Electro-Optics Society, 2007. LEOS 2007.

R. V. Shenoi D. A. Ramirez, Y. Sharma, R. S. Attaluri, J. Rosenberg, O. J. Painter, and S. Krishna, “Plasmon Assisted Photonic Crystal Quantum Dot Sensors”, Nanophotonics and Macrophotonics for Space Environments(6713) SPIE Optics Photonics SanDiego(2007)

Mike Lenz, Eric Varley, David Ramirez, Jay  Brown, Sang Jun Lee, Andreas Stintz, Axel Reisinger and Mani Sundaram, and S.Krishna "Demonstration of a Two-Color 320 x 256 Quantum Dots-in-a-Well Focal Plane Array." Infrared Spaceborne Remote Sensing and Instrumentation XV(6678) SPIE oPTICS Photonics San Diego(2007)

S.Krishna, "Multicolor Spectrally Adaptive Infrared Sensors Based on Nanoscale Quantum Dots" 7th IEEE International Conference on Nanotechnology Hong Kong (IEEE-NANO 2007)

J.B.Rodrigues,E. Plis, S.J.Lee, H.Kim, G.Bishop, Y. Sharma, L.R.Dawson,S. Krishna, and C Jones,“Type-II  InAs/GaSb Strain Layer Superlattice Detectors for  Higher Operating Temperatures” SPIE Int. conference on Defense and Security Symposium 9-13 April 2007 OrlandoFlorida,  SPIE 6542, Bellingham, WA  (2007).