Demonstration and performance assessment of large format InP-InGaAsP quantum-well infrared photodetector focal plane array

Date

2007-07-01

Author

Ozer, S.
Tümkaya, Umman
Asici, B.
Beşikci, Cengiz

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

172
views

0
downloads

There have been various studies showing that InP-InGaAs quantum-well infrared photodetectors (QWIPs) are potential alternatives to AlGaAs-GaAs QWIPs in the long wavelength infrared (LWIR) band, especially for applications requiring high responsivity. Being on InP substrate, this material system also offers lattice matched mid-wavelength infrared (MWIR)/LWIR dual band QWIP stack when it is used with the AlInAs-InGaAs system. It is desirable to extend the cut-off wavelength of Inp based LWIR QWIPs to similar to 9 mu m, which can be accomplished by replacing the QW material with InGaAsP. In this paper, we report the first InP-InGaAsP QWIP focal plane array (FPA). The 640 x 512 FPA displayed remarkably low noise equivalent temperature difference (NETD) with very short integration times'(46 mK at 66 K with T-int = 440 mu s and f/1.5 optics). The results show that these QWIPs can be operated with high responsivity (> 1 A/W) while offering bias adjustable gain in a wide range where the detectivity is almost constant at a reasonably high level.

Subject Keywords

Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics, Condensed Matter Physics

URI

https://hdl.handle.net/11511/38304

Journal

IEEE JOURNAL OF QUANTUM ELECTRONICS

DOI

https://doi.org/10.1109/jqe.2007.900253

Collections

Department of Basic English, Article

Suggestions

OpenMETU
Core

High Conversion Efficiency InP/InGaAs Strained Quantum Well Infrared Photodetector Focal Plane Array With 9.7 mu m Cut-Off for High-Speed Thermal Imaging Eker, Suleyman Umut; Arslan, Yetkin; Onuk, Ahmet Emre; Beşikci, Cengiz (Institute of Electrical and Electronics Engineers (IEEE), 2010-02-01) InP/InGaAs material system is an alternative to AlGaAs/GaAs for long wavelength quantum well infrared photodetectors (QWIPs). We demonstrate a large format (640 x 512) QWIP focal plane array (FPA) constructed with the strained InP/InGaAs material system. The strain introduced to the structure through utilization of In0.48Ga0.52As (instead of In0.53Ga0.47As) as the quantum well material shifts the cut-off wavelength from similar to 8.5 to 9.7 mu m. The FPA fabricated with the 40-well epilayer structure yield...
In vivo biosensing via tissue-localizable near-infrared-fluorescent single-walled carbon nanotubes Iverson, Nicole M.; Barone, Paul W.; Shandell, Mia; Trudel, Laura J.; Sen, Selda; Sen, Fatih; Ivanov, Vsevolod; Atolia, Esha; Farias, Edgardo; McNicholas, Thomas P.; Reuel, Nigel; Parry, Nicola M. A.; Wogan, Gerald N.; Strano, Michael S. (Springer Science and Business Media LLC, 2013-11-01) Single-walled carbon nanotubes are particularly attractive for biomedical applications, because they exhibit a fluorescent signal in a spectral region where there is minimal interference from biological media. Although single-walled carbon nanotubes have been used as highly sensitive detectors for various compounds, their use as in vivo biomarkers requires the simultaneous optimization of various parameters, including biocompatibility, molecular recognition, high fluorescence quantum efficiency and signal t...
Improving the absorption of solar cells using antenna-inspired cavities Karaosmanoğlu, Barışcan; Tuygar, Emre; Topçuoğlu, Ulaş; Ergül, Özgür Salih (Wiley, 2019-08-01) We present new types of nanocavities to improve the absorption of solar cells for energy harvesting in wide frequency ranges of the optical spectrum. Using a full‐wave approach, as opposed to the commonly used ray‐based modeling of the light, antenna‐inspired cavities with horn shapes are proposed and introduced. The effectiveness of the designed cavities is demonstrated in comparison to the conventional textures involving inverted pyramids and nanocones. Highly accurate numerical results show that solar‐ce...
Utilization of anisotropic metamaterial layers in waveguide miniaturization and transitions Ozgun, Ozlem; Kuzuoğlu, Mustafa (Institute of Electrical and Electronics Engineers (IEEE), 2007-11-01) We introduce a new approach which enables a waveguide to support propagation of electromagnetic waves below the cutoff frequency, as well as which avoids undesirable reflections in a waveguide. These are achieved through the usage of an anisotropic metamaterial layer by employing the concept of coordinate transformation. The proposed method can be utilized for the fabrication of miniaturized waveguides, and for the elimination of discontinuities in abrupt waveguide transitions. We demonstrate some numerical...
Assessment of large format InP/InGaAs quantum well infrared photodetector focal plane array Ozer, S; Cellek, OO; Beşikci, Cengiz (Elsevier BV, 2005-10-01) We report the fabrication and characteristics of large format (640 x 512) InP/In0.53Ga0.47As long wavelength infrared (LWIR) quantum well infrared photodetector (QWIP) focal plane array (FPA). The FPA, which is hybridized to a read-out integrated circuit having a charge capacity of 1.1 x 10(7) electrons, yielded a mean noise equivalent temperature difference (NETD) of similar to 40 mK at a cold finger temperature as high as 77 K. The performance of the FPA, being comparable to that of AlGaAs/GaAs QWIP FPAs,...

Citation Formats

S. Ozer, U. Tümkaya, B. Asici, and C. Beşikci, “Demonstration and performance assessment of large format InP-InGaAsP quantum-well infrared photodetector focal plane array,” IEEE JOURNAL OF QUANTUM ELECTRONICS, pp. 709–713, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38304.