Laparoscopic and endoscopic instruments for minimally invasive surgery are widely used and developed. Previously, author proposed an optical system for an endoscope operating in the long-wavelength IR spectral range [1] for thermal monitoring of biological tissue during surgery. The system is a sequence of germanium lenses. This paper discusses energy performance of the resulting system. The analysis of the long wave infrared range (LWIR) detectors is presented, absorption and throughput is evaluated. Signal-to-noise ratio of the resulting system is calculated.

Date Published: 2 March 2020
PDF: 6 pages
Proc. SPIE 11274, Physics and Simulation of Optoelectronic Devices XXVIII, 1127424 (2 March 2020); doi: 10.1117/12.2544732

Published in SPIE Proceedings Vol. 11274:
Physics and Simulation of Optoelectronic Devices XXVIII
Bernd Witzigmann; Marek Osiński; Yasuhiko Arakawa, Editor(s)