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2015

Surface photovoltage spectroscopy study of InAs quantum dot in quantum well multilayer structures for infrared photodetectors

V Donchev, Ts Ivanov, Ts Ivanova, S Mathews, JO Kim, S Krishna

Superlattices and Microstructures


Mid-infrared metamorphic interband cascade photodetectors on GaAs substrates

Zhao-Bing Tian, Sanjay Krishna

Applied Physics Letters


Dark current reduction in InAs/InAsSb superlattice mid-wave infrared detectors through restoration etch

EA Plis, T Schuler-Sandy, DA Ramirez, S Myers, S Krishna

Electronics Letters


4th generation infrared detectors and focal plane arrays

Sanjay Krishna

Avionics and Vehicle Fiber-Optics and Photonics Conference (AVFOP), 2015 IEEE


Investigation of a near mid-gap trap energy level in mid-wavelength infrared InAs/GaSb type-II superlattices

Jarosław Wróbel, Łukasz Ciura, Marcin Motyka, Frank Szmulowicz, Andrzej Kolek, Andrzej Kowalewski, Paweł Moszczyński, Mateusz Dyksik, Paweł Madejczyk, Sanjay Krishna, Antoni Rogalski

Semiconductor Science and Technology


Modelling of current-voltage characteristics of infrared photo-detectors based on type–II InAs/GaSb super-lattice diodes with unipolar blocking layers

Vishnu Gopal, Nutan Gautam, Elena Plis, Sanjay Krishna

AIP Advances


MWIR unipolar barrier photodetectors based on strained layer superlattices

David A Ramirez, Stephen A Myers, Elena Plis, Yuliya Kuznetsova, Christian P Morath, Vincent M Cowan, Sanjay Krishna

SPIE Optical Engineering+ Applications


Progress towards vertical transport study of proton-irradiated InAs/GaSb type-II strained-layer superlattice materials for space-based infrared detectors using magnetoresistance measurements

Mitchell C Malone, Christian P Morath, Stephen Fahey, Brianna Klein, Vincent M Cowan, Sanjay Krishna

SPIE Optical Engineering+ Applications


Growth of InAs–InAsSb SLS through the use of digital alloys

T Schuler-Sandy, B Klein, L Casias, S Mathews, C Kadlec, Z Tian, E Plis, S Myers, S Krishna

Journal of Crystal Growth


Molecular beam epitaxy growth of antimony-based mid-infrared interband cascade photodetectors

Zhao-Bing Tian, Ted Schuler-Sandy, Sanjay Krishna, Dinghao Tang, David J Smith

Journal of Crystal Growth


InAsSb-based nBn photodetectors: lattice mismatched growth on GaAs and low-frequency noise performance

AP Craig, MD Thompson, ZB Tian, S Krishna, Anthony Krier, ARJ Marshall

Semiconductor Science and Technology


Quadrature & frequency diverse terahertz imaging with metamaterials

Willie J Padilla, Claire M Watts, John Montoya, Christian C Nadell, Sanjay Krishna

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on


Large-area semiconducting graphene nanomesh tailored by interferometric lithography

Alireza Kazemi, Xiang He, Seyedhamidreza Alaie, Javad Ghasemi, Noel Mayur Dawson, Francesca Cavallo, Terefe G Habteyes, Steven RJ Brueck, Sanjay Krishna

Scientific reports


Mid-infrared materials and devices for 4 th generation infrared imagers

Sanjay Krishna

Device Research Conference (DRC), 2015 73rd Annual


High-operating temperature MWIR unipolar barrier photodetectors based on strained layer superlattices

David A Ramirez, Elena A Plis, Stephen A Myers, Christian P Morath, Vincent M Cowan, Sanjay Krishna

SPIE Defense+ Security


Progress on the development of interband cascade photodetectors

Z-B Tian, S Krishna

SPIE Defense+ Security


Confocal Raman spectroscopy and AFM for evaluation of sidewalls in type II superlattice FPAs

TJ Rotter, T Busani, P Rathi, F Jaeckel, PA Reyes, KJ Malloy, AA Ukhanov, E Plis, S Krishna, M Jaime-Vasquez, NF Baril, JD Benson, DA Tenne

SPIE Defense+ Security


Reprint of “Mid-infrared InAsSb-based nBn photodetectors with AlGaAsSb barrier layers–grown on GaAs, using an interfacial misfit array, and on native GaSb”

AP Craig, Andrew Robert Julian Marshall, Z-B Tian, S Krishna

Infrared Physics & Technology


Dark current in antimony-based mid-infrared interband cascade infrared photodetectors

Z-B Tian, T Schuler-Sandy, S Krishna

Infrared Physics & Technology


Photocapacitance study of GaSb: In, As for defect analysis in InAs/GaSb type-II strained layer superlattices

B Klein, C Hains, Z Taghipour, E Plis, S Krishna

Infrared Physics & Technology


InAs/GaAs quantum dot and dots-in-well infrared photodetectors based on p-type valence-band intersublevel transitions

AG Unil Perera, Yan-Feng Lao, Seyoum Wolde, YH Zhang, TM Wang, JO Kim, Ted Schuler-Sandy, Zhao-Bing Tian, SS Krishna

Infrared Physics & Technology


Post-etching mesa surface composition investigation of InAs/GaSb type-II strained layer superlattices using XPS characterization

B Klein, K Artyushkova, E Plis, A Jamus, S Maji, L Casias, MN Kutty, S Krishna

Infrared Physics & Technology


Radiometric characterization of an LWIR, type-II strained layer superlattice pBiBn photodetector

LA Treider, CP Morath, VM Cowan, ZB Tian, S Krishna

Infrared Physics & Technology


Dynamic infrared imaging for skin cancer screening

Sebastián E Godoy, David A Ramirez, Stephen A Myers, Greg von Winckel, Sanchita Krishna, Marianne Berwick, R Steven Padilla, Pradeep Sen, Sanjay Krishna

Infrared Physics & Technology


Dual color longwave InAs/GaSb type-II strained layer superlattice detectors

E Plis, S Myers, D Ramirez, EP Smith, D Rhiger, C Chen, JD Phillips, S Krishna

Infrared Physics & Technology


Pixel isolation in Type-II InAs/GaSb superlattice photodiodes by femto-second laser annealing

Sona Das, Utpal Das, Nutan Gautam, Sanjay Krishna

SPIE Optics+ Optoelectronics


Mid-infrared interband cascade photodetectors with different absorber designs

Zhao-Bing Tian, Sanjay Krishna

IEEE Journal of Quantum Electronics


Theoretical study of strain-dependent optical absorption in Stranski-Krastanov grown InAs/InGaAs/GaAs/AlGaAs quantum dots

Tarek Ameen, Hesameddin Ilatikhameneh, Yuling Hsueh, James Charles, Jim Fonseca, Michael Povolotskyi, Jun Oh Kim, Sanjay Krishna, Monica S Allen, Jeffery W Allen, Brett R Wenner, Rajib Rahman, Gerhard Klimeck

arXiv preprint arXiv:1502.07726


Investigation of plasmonic enhancement in a quantum dot-in-a-well structure

Alireza Kazemi, Brianna Klein, Mohsen Nami, Jun Oh Kim, Monica S Allen, Jeffery W Allen, Brett R Wenner, Dean P Brown, Augustine Urbas, Daniel Feezell, Bill Mitchell, Sanjay Krishna

SPIE OPTO


Dark current improvement of the type-II InAs/GaSb superlattice photodetectors by using a gate bias control

Ha Sul Kim, S Myers, B Klein, A Kazemi, S Krishna, Jun Oh Kim, Sang Jun Lee

Journal of the Korean Physical Society


InAs/GaSb type-II superlattice for radiation thermometry

Matthew J Hobbs, Chee Hing Tan, Xinxin Zhou, John PR David, Jon R Willmott, Elena Plis, Sanjay Krishna

IEEE Transactions on Instrumentation and Measurement