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A. G. U. Perera
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Journal Articles

Dark current and photoresponse characteristics of extended wavelength infrared photodetectors

D. Chauhan, A. G. U. Perera, L. H. Li, L. Chen, E. H. Linfield
Journal: Journal of Applied Physics
J. Appl. Phys. 122, 024501 (2017)
https://doi.org/10.1063/1.4992075
Published: July 2017
View article titled, Dark current and photoresponse characteristics of extended wavelength infrared photodetectors
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Journal Articles

Effect of a current blocking barrier on a 2–6 μm p-GaAs/AlGaAs heterojunction infrared detector

D. Chauhan, A. G. U. Perera, L. H. Li, L. Chen, E. H. Linfield
Journal: Applied Physics Letters
Appl. Phys. Lett. 108, 201105 (2016)
https://doi.org/10.1063/1.4952431
Published: May 2016
View article titled, Effect of a current blocking barrier on a 2–6 <em>μ</em>m p-GaAs/AlGaAs heterojunction infrared detector
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Journal Articles

Optical characteristics of p-type GaAs-based semiconductors towards applications in photoemission infrared detectors

Y. F. Lao, A. G. U. Perera, H. L. Wang, J. H. Zhao, Y. J. Jin, D. H. Zhang
Journal: Journal of Applied Physics
J. Appl. Phys. 119, 105304 (2016)
https://doi.org/10.1063/1.4943591
Published: March 2016
View article titled, Optical characteristics of <em>p</em>-type GaAs-based semiconductors towards applications in photoemission infrared detectors
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Journal Articles

Performance improvements of a split-off band infra-red detector using a graded barrier

P. K. D. D. P. Pitigala, Y. F. Lao, A. G. U. Perera, L. H. Li, E. H. Linfield, H. C. Liu
Journal: Journal of Applied Physics
J. Appl. Phys. 115, 063105 (2014)
https://doi.org/10.1063/1.4865501
Published: February 2014
View article titled, Performance improvements of a split-off band infra-red detector using a graded barrier
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Journal Articles

Optical phonon modes in InGaN/GaN dot-in-a-wire heterostructures grown by molecular beam epitaxy

J. Titus, H. P. T. Nguyen, Z. Mi, A. G. U. Perera
Journal: Applied Physics Letters
Appl. Phys. Lett. 102, 121901 (2013)
https://doi.org/10.1063/1.4798245
Published: March 2013
View article titled, Optical phonon modes in InGaN/GaN dot-in-a-wire heterostructures grown by molecular beam epitaxy
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Journal Articles

Photovoltaic infrared detection with p-type graded barrier heterostructures

P. K. D. D. P. Pitigala, S. G. Matsik, A. G. U. Perera, S. P. Khanna, L. H. Li, E. H. Linfield, Z. R. Wasilewski, M. Buchanan, H. C. Liu
Journal: Journal of Applied Physics
J. Appl. Phys. 111, 084505 (2012)
https://doi.org/10.1063/1.4704695
Published: April 2012
View article titled, Photovoltaic infrared detection with p-type graded barrier heterostructures
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Journal Articles

High-performance, long-wave (∼10.2 μm) InGaAs/GaAs quantum dot infrared photodetector with quaternary In0.21Al0.21Ga0.58As capping

Subhananda Chakrabarti, Sourav Adhikary, Nilanjan Halder, Yigit Aytac, A. G. U. Perera
Journal: Applied Physics Letters
Appl. Phys. Lett. 99, 181102 (2011)
https://doi.org/10.1063/1.3657142
Published: October 2011
View article titled, High-performance, long-wave (∼10.2 <em>μ</em>m) InGaAs/GaAs quantum dot infrared photodetector with quaternary In<sub>0.21</sub>Al<sub>0.21</sub>Ga<sub>0.58</sub>As capping
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Journal Articles

Five-band bias-selectable integrated quantum well detector in an n - p - n architecture

G. Ariyawansa, Y. Aytac, A. G. U. Perera, S. G. Matsik, M. Buchanan, Z. R. Wasilewski, H. C. Liu
Journal: Applied Physics Letters
Appl. Phys. Lett. 97, 231102 (2010)
https://doi.org/10.1063/1.3524236
Published: December 2010
View article titled, Five-band bias-selectable integrated quantum well detector in an n - p - n architecture
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Journal Articles

Light-hole and heavy-hole transitions for high-temperature long-wavelength infrared detection

Y. F. Lao, P. K. D. D. P. Pitigala, A. G. U. Perera, H. C. Liu, M. Buchanan, Z. R. Wasilewski, K. K. Choi, P. Wijewarnasuriya
Journal: Applied Physics Letters
Appl. Phys. Lett. 97, 091104 (2010)
https://doi.org/10.1063/1.3486169
Published: September 2010
View article titled, Light-hole and heavy-hole transitions for high-temperature long-wavelength infrared detection
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Journal Articles

High-performance quantum ring detector for the 1–3 terahertz range

S. Bhowmick, G. Huang, W. Guo, C. S. Lee, P. Bhattacharya, G. Ariyawansa, A. G. U. Perera
Journal: Applied Physics Letters
Appl. Phys. Lett. 96, 231103 (2010)
https://doi.org/10.1063/1.3447364
Published: June 2010
View article titled, High-performance quantum ring detector for the 1–3 terahertz range
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Journal Articles

Device modeling for split-off band detectors

S. G. Matsik, P. V. V. Jayaweera, A. G. U. Perera, K. K. Choi, P. Wijewarnasuriya
Journal: Journal of Applied Physics
J. Appl. Phys. 106, 064503 (2009)
https://doi.org/10.1063/1.3224873
Published: September 2009
View article titled, Device modeling for split-off band detectors
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Journal Articles

Negative capacitance in Ga N ∕ Al Ga N heterojunction dual-band detectors

L. E. Byrum, G. Ariyawansa, R. C. Jayasinghe, N. Dietz, A. G. U. Perera, S. G. Matsik, I. T. Ferguson, A. Bezinger, H. C. Liu
Journal: Journal of Applied Physics
J. Appl. Phys. 106, 053701 (2009)
https://doi.org/10.1063/1.3211292
Published: September 2009
View article titled, Negative capacitance in Ga N ∕ Al Ga N heterojunction dual-band detectors
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Journal Articles

Effect of emitter thickness on the spectral shape of heterojunction interfacial workfunction internal photoemission detectors

S. G. Matsik, R. C. Jayasinghe, A. B. Weerasekara, A. G. U. Perera, E. H. Linfield, S. P. Khanna, M. Lachab, H. C. Liu
Journal: Journal of Applied Physics
J. Appl. Phys. 106, 014509 (2009)
https://doi.org/10.1063/1.3153954
Published: July 2009
View article titled, Effect of emitter thickness on the spectral shape of heterojunction interfacial workfunction internal photoemission detectors
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Journal Articles

Wavelength agile superlattice quantum dot infrared photodetector

G. Ariyawansa, A. G. U. Perera, G. Huang, P. Bhattacharya
Journal: Applied Physics Letters
Appl. Phys. Lett. 94, 131109 (2009)
https://doi.org/10.1063/1.3114420
Published: April 2009
View article titled, Wavelength agile superlattice quantum dot infrared photodetector
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Journal Articles

A quantum ring terahertz detector with resonant tunnel barriers

G. Huang, W. Guo, P. Bhattacharya, G. Ariyawansa, A. G. U. Perera
Journal: Applied Physics Letters
Appl. Phys. Lett. 94, 101115 (2009)
https://doi.org/10.1063/1.3100407
Published: March 2009
View article titled, A quantum ring terahertz detector with resonant tunnel barriers
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Journal Articles

Capacitance hysteresis in GaN/AlGaN heterostructures

L. E. Byrum, G. Ariyawansa, R. C. Jayasinghe, N. Dietz, A. G. U. Perera, S. G. Matsik, I. T. Ferguson, A. Bezinger, H. C. Liu
Journal: Journal of Applied Physics
J. Appl. Phys. 105, 023709 (2009)
https://doi.org/10.1063/1.3068179
Published: January 2009
View article titled, Capacitance hysteresis in GaN/AlGaN heterostructures
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Journal Articles

Self-consistent performance modeling for dualband detectors

S. G. Matsik, A. G. U. Perera
Journal: Journal of Applied Physics
J. Appl. Phys. 104, 044502 (2008)
https://doi.org/10.1063/1.2967714
Published: August 2008
View article titled, Self-consistent performance modeling for dualband detectors
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Journal Articles

Uncooled infrared detectors for 3 – 5 μ m and beyond

P. V. V. Jayaweera, S. G. Matsik, A. G. U. Perera, H. C. Liu, M. Buchanan, Z. R. Wasilewski
Journal: Applied Physics Letters
Appl. Phys. Lett. 93, 021105 (2008)
https://doi.org/10.1063/1.2959060
Published: July 2008
View article titled, Uncooled infrared detectors for 3 – 5 μ m and beyond
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Journal Articles

Optical characterization of InN layers grown by high-pressure chemical vapor deposition

M. Alevli, R. Atalay, G. Durkaya, A. Weesekara, A. G. U. Perera, N. Dietz, R. Kirste, A. Hoffmann
Journal: Journal of Vacuum Science & Technology A
J. Vac. Sci. Technol. A 26, 1023–1026 (2008)
https://doi.org/10.1116/1.2908736
Published: July 2008
View article titled, Optical characterization of InN layers grown by high-pressure chemical vapor deposition
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Journal Articles

Bias-selectable tricolor tunneling quantum dot infrared photodetector for atmospheric windows

G. Ariyawansa, V. Apalkov, A. G. U. Perera, S. G. Matsik, G. Huang, P. Bhattacharya
Journal: Applied Physics Letters
Appl. Phys. Lett. 92, 111104 (2008)
https://doi.org/10.1063/1.2898521
Published: March 2008
View article titled, Bias-selectable tricolor tunneling quantum dot infrared photodetector for atmospheric windows
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