Document Type
Article
Language
eng
Publication Date
2-2011
Publisher
Institute of Electrical and Electronic Engineers (IEEE)
Source Publication
IEEE Journal of Quantum Electronics
Source ISSN
0018-9197
Original Item ID
DOI: 10.1109/JQE.2010.2065216
Abstract
We report on the implementation of an algorithm-based spectrometer capable of reconstructing the spectral shape of materials in the mid-wave infrared (MWIR) and long-wave infrared (LWIR) wavelengths using only experimental photocurrent measurements from quantum dot infrared photodetectors (QDIPs). The theory and implementation of the algorithm will be described, followed by an investigation into this algorithmic spectrometer's performance. Compared to the QDIPs utilized in an earlier implementation, the ones used here have highly varying spectral shapes and four spectral peaks across the MWIR and LWIR wavelengths. It has been found that the spectrometer is capable of reconstructing broad spectral features of a range of bandpass infrared filters between wavelengths of 4 and 12 as well as identifying absorption features as narrow as 0.3 in the IR spectrum of a polyethylene sheet.
Recommended Citation
Vines, Peter; Tan, Chee Hing; David, John P.R.; Attaluri, Ram S.; Vanderveldt, Thomas E.; Krishna, Sanjay; Jang, Woo-Yong; and Hayat, Majeed M., "Versatile Spectral Imaging With an Algorithm-Based Spectrometer Using Highly Tuneable Quantum Dot Infrared Photodetectors" (2011). Electrical and Computer Engineering Faculty Research and Publications. 547.
https://epublications.marquette.edu/electric_fac/547
ADA Accessible Version
Comments
Accepted version. IEEE Journal of Quantum Electronics, Vol. 47, No. 2 (February 2011): 190-197. DOI. © 2011 Institute of Electrical and Electronic Engineers (IEEE). Used with permission.