Title :
Porous silicon vapor sensor based on polarization interferometry
Author :
Liu, Rong ; Tsai, Chia-Ho ; Fainman, Yeshaiahu ; Schmedake, Thomas A. ; Li, Yangyang ; Sailor, Michael J.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA
Abstract :
We present a new signal transduction mechanism based on the optical form birefringence property of porous silicon, and demonstrate its application to vapor sensing. We demonstrate that polarization interferometry based on the optical anisotropy or form birefringence of porous silicon can be used as a new signal transduction mechanism and illustrates its potential for various chemical and biological sensing applications
Keywords :
birefringence; gas sensors; light interferometry; light polarisation; optical polarisers; porous semiconductors; silicon; Si; biological sensing applications; chemical sensing applications; form birefringence; optical anisotropy; polarization interferometry; porous silicon; signal transduction mechanism; vapor sensor; Anisotropic magnetoresistance; Biomedical optical imaging; Birefringence; Chemicals; Geometrical optics; Mechanical factors; Optical interferometry; Optical polarization; Optical sensors; Silicon;
Conference_Titel :
Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7105-4
DOI :
10.1109/LEOS.2001.969067
