24 June 2014 Thermomechancial characterization in a radiant energy imager using null switching
Author Affiliations +
Abstract
Thermomechanical noise for a MEMs-based infrared detector using null switching (US patent 7977635) depends on vibrational amplitude, since IR radiation is transduced to a change in the duty cycle of a repetitively closing switch. Equipartition theorem gives a maximum rms vibrational amplitude of 45 pm for the fabricated cantilever switch at its natural frequency. This gives a worst case timing uncertainty of 700 ns and an NEP of 2 pW/Sqrt[Hz].
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Javaneh Boroumand , Javaneh Boroumand , Imen Rezadad, Imen Rezadad, Ammar Alhasan, Ammar Alhasan, Evan M. Smith, Evan M. Smith, Robert E. Peale, Robert E. Peale, } "Thermomechancial characterization in a radiant energy imager using null switching", Proc. SPIE 9070, Infrared Technology and Applications XL, 907020 (24 June 2014); doi: 10.1117/12.2052338; https://doi.org/10.1117/12.2052338
PROCEEDINGS
7 PAGES


SHARE
Back to Top