Laser Co2 Radiation Detection Using QWIP

Wail Y. Nassir

doi:10.24237/djes.2018.11101

Authors

Wail Y. Nassir
140018@uotechnology.edu.iq
Department of Communications Engineering, University of Technology, Baghdad, Iraq

Keywords:

Quantum wells, Photo detector, Infrared radiation

Abstract

Quantum well infrared photodetector (QWIP) become one of the important devices recently for their efficient, stability,uniformity, and high intrinsic speed. The photodetector was designed, and the validity, absorption coefficient, and band transitions are studied extensively. The quantum wells included in this research operate in mid infrared wavelength region (9-11 µm). Results showed that peak absorption coefficient at (10.6 μm) is (9000 cm-1) for Bound – bound transition and is more narrow and intense from boundcontinuum transition (1800 cm-1) and the quantum well based devices can be used to detect such wavelength providing that the external electric field stays below a reasonable value. This makes such device a promising solution for MIR applications.

Downloads

Download data is not yet available.

References

G. Rieke, Detection of Light: From the Ultraviolet to the Submillimeter, 1st ed. Cambridge University Press, 2002

B.R. Nag, "Physics of Quantum Well Devices", Kluwer academic publishers, 2002.

A. Rogalski, Infrared Detectors.2nd edition, Taylor and Francis, 2011.

M. Razeghi, Fundamentals of Solid State Engineering, 1st ed. Kluwer Academic Publishers, 2002.

R. D. Hudson, "Infrared System Engineering", John Wiley & Sons, Inc., 2006.

E. Rosencher, Optoelectronics, 1st ed. Cambridge University Press, 2002.

J.P. Srivasatava, "Elements of Solid State Physics", PHI Learning Pvt. Ltd., 2014.

M. Fox, "Optical Properties of Solids", Oxford University Press, 2003.

S. D. Gunapala,et al., High performance InGaAs/GaAs quantum well infrared photodetectors, Applied Physics Letters 64, 3431, 1994.

X .Tong1, N. Lan1, X. Q. Lu1, D. Y. Xiong, Boundary conditions in characterizing InxGa1-xAs /GaAs quantum well infrared photodetector, IEEE Journal of Selected Topics in Quantum Electronics, 2015.

X. Tong, D. Y. Xiong , N. Lan, X. Q. Lu, Bloch wave conditions for continuum states in the InGaAs/GaAs QWIPs, Optical and Quantum Electronics, 2016.

S. V. Bandara, et al., “Tuning and tailoring of broadband quantum-well infrared photodetector responsivity spectrum,” Appl. Phys. Lett. 86, 151104, 2005.

H. Schneider, H.C. Liu, “Quantum Well Infrared Photodetectors Physics and Applications”, Springer-Verlag Berlin Heidelberg, 2007.