S
Sumith V. Bandara
Researcher at California Institute of Technology
Publications - 140
Citations - 2385
Sumith V. Bandara is an academic researcher from California Institute of Technology. The author has contributed to research in topics: Quantum well infrared photodetector & Quantum well. The author has an hindex of 25, co-authored 139 publications receiving 2323 citations. Previous affiliations of Sumith V. Bandara include Jet Propulsion Laboratory.
Papers
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Journal ArticleDOI
High-temperature operation of InAs-GaAs quantum-dot infrared photodetectors with large responsivity and detectivity
Subhananda Chakrabarti,Adrienne D. Stiff-Roberts,P. K. Bhattacharya,Sarath D. Gunapala,Sumith V. Bandara,Sir B. Rafol,S. W. Kennerly +6 more
TL;DR: In this article, the growth of multiple self-organized InAs quantum dots separated by GaAs barrier layers was optimized to enhance the absorption of quantum-dot infrared photodetectors (QDIPs).
Journal ArticleDOI
640/spl times/486 long-wavelength two-color GaAs/AlGaAs quantum well infrared photodetector (QWIP) focal plane array camera
Sarath D. Gunapala,Sumith V. Bandara,Anjali Singh,John K. Liu,B. Rafol,Edward M. Luong,Jason M. Mumolo,N.Q. Tran,D. Z. Ting,J.D. Vincent,C. A. Shott,J. Long,Paul D. LeVan +12 more
TL;DR: In this paper, an optimized longwavelength/very-long wavelength two-color quantum well infrared photodetector (QWIP) device structure was designed and fabricated on a 3-in semi-insulating GaAs substrate by molecular beam epitaxy (MBE).
Journal ArticleDOI
1024 × 1024 pixel mid-wavelength and long-wavelength infrared QWIP focal plane arrays for imaging applications
Sarath D. Gunapala,Sumith V. Bandara,John K. Liu,Cory J. Hill,Sir B. Rafol,Jason M. Mumolo,J. T. Trinh,Meimei Z. Tidrow,Paul D. LeVan +8 more
TL;DR: In this paper, the performance in terms of quantum efficiency, NE(delta)T, uniformity, operability and modulation transfer functions were discussed for both MWIR and LWIR focal planes.
Journal ArticleDOI
640 $\,\times\,$ 512 Pixels Long-Wavelength Infrared (LWIR) Quantum-Dot Infrared Photodetector (QDIP) Imaging Focal Plane Array
Sarath D. Gunapala,Sumith V. Bandara,Cory J. Hill,D. Z. Ting,John K. Liu,B. Rafol,E.R. Blazejewski,Jason M. Mumolo,Sam A. Keo,Sanjay Krishna,Yia-Chung Chang,C. A. Shott +11 more
TL;DR: In this article, self-assembled InAs-InGaAs-GaAs quantum dots are exploited for the development of large-format long-wavelength infrared focal plane arrays (FPAs).
Submonolayer Quantum Dot Infrared Photodetector
TL;DR: In this article, a method has been developed for inserting submonolayer (SML) quantum dots (QDs) or SML QD stacks, instead of conventional Stranski-Krastanov (S-K) QDs, into the active region of intersubband photodetectors.