
Proceedings Paper
Ultra-broadband wavelength conversion sensor using thermochromic liquid crystalsFormat | Member Price | Non-Member Price |
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Paper Abstract
Wavelength conversion (WC) imaging is a methodology that employs temperature sensitive detectors to convert photoinduced
termperature into a detectable optical signal. One specific method is to use molecular detectors such as
thermochromic liquid crystals (TLC), which exhibits thermochromism to observe the surface temperature of an area by
observing the apparent color in the visible spectrum. Utilizing this methodology, an ultra-broadband room temperature
imaging system was envisioned and realized using off the shelf thermochromic liquid crystals. The thermochromic
properties of the sensor were characterized to show a thermochromic coefficient α = 10%/°K and a noise equivalent
power (NEP) of 64 μW. With the TLC camera, images of both pulsed and continuous wave (CW) sources spanning 0.6
μm to 150 μm wavelengths were captured to demonstrate its potential as a portable, low-cost, and ultra-broadband
imaging tool.
Paper Details
Date Published: 27 March 2013
PDF: 11 pages
Proc. SPIE 8624, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VI, 862415 (27 March 2013); doi: 10.1117/12.2012071
Published in SPIE Proceedings Vol. 8624:
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VI
Laurence P. Sadwick; Créidhe M. O'Sullivan, Editor(s)
PDF: 11 pages
Proc. SPIE 8624, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VI, 862415 (27 March 2013); doi: 10.1117/12.2012071
Show Author Affiliations
Ichun Anderson Chen, North Carolina State Univ. (United States)
S. W. Park, Stevens Institute of Technology (United States)
G. Chen, Stevens Institute of Technology (United States)
C. Wang, Stevens Institute of Technology (United States)
S. W. Park, Stevens Institute of Technology (United States)
G. Chen, Stevens Institute of Technology (United States)
C. Wang, Stevens Institute of Technology (United States)
C. Bethea, Quantum Technology Consultants Inc. (United States)
R. Martini, Stevens Institute of Technology (United States)
D. Woolard, North Carolina State Univ. (United States)
R. Martini, Stevens Institute of Technology (United States)
D. Woolard, North Carolina State Univ. (United States)
Published in SPIE Proceedings Vol. 8624:
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VI
Laurence P. Sadwick; Créidhe M. O'Sullivan, Editor(s)
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