@article { ISI:000338044300034,
	title = {Active hyperspectral imaging using a quantum cascade laser (QCL) array and digital-pixel focal plane array (DFPA) camera},
	journal = {OPTICS EXPRESS},
	volume = {22},
	number = {12},
	year = {2014},
	month = {JUN 16},
	pages = {14392-14401},
	publisher = {OPTICAL SOC AMER},
	type = {Article},
	address = {2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA},
	abstract = {We demonstrate active hyperspectral imaging using a quantum-cascade laser (QCL) array as the illumination source and a digital-pixel focal-plane-array (DFPA) camera as the receiver. The multi-wavelength QCL array used in this work comprises 15 individually addressable QCLs in which the beams from all lasers are spatially overlapped using wavelength beam combining (WBC). The DFPA camera was configured to integrate the laser light reflected from the sample and to perform on-chip subtraction of the passive thermal background. A 27-frame hyperspectral image was acquired of a liquid contaminant on a diffuse gold surface at a range of 5 meters. The measured spectral reflectance closely matches the calculated reflectance. Furthermore, the high-speed capabilities of the system were demonstrated by capturing differential reflectance images of sand and KClO3 particles that were moving at speeds of up to 10 m/s. (C) 2014 Optical Society of America},
	issn = {1094-4087},
	doi = {10.1364/OE.22.014392},
	url = {https://doi.org/10.1364/OE.22.014392},
	author = {Goyal, Anish and Myers, Travis and Wang, Christine A. and Kelly, Michael and Tyrrell, Brian and Gokden, B. and Sanchez, Antonio and Turner, George and Federico Capasso}
}
