Title :
Self-mixing interferometry in VCSELs for nanomechanical cantilever sensing
Author :
Larsson, David ; Greve, Anders ; Hvam, JØrn M. ; Boisen, Anja ; Yvind, Kresten
Author_Institution :
Dept. of Photonics Eng., Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
We have investigated optical read-out of uncoated polymer micrometer-sized cantilever sensors by self-mixing interference in VCSELs for single-molecule gas sensing. A resolution ~0.2 nm is measured, which is much better than current methods.
Keywords :
cantilevers; chemical variables measurement; light interferometry; measurement by laser beam; nanosensors; readout electronics; spectrochemical analysis; surface emitting lasers; VCSEL; nanomechanical cantilever sensing; optical read out; self mixing interference; self mixing interferometry; single molecule gas sensing; uncoated polymer micrometer cantilever sensor; Biomedical optical imaging; Laser feedback; Optical feedback; Optical interferometry; Optical polymers; Optical sensors; Output feedback; Reflectivity; Surface emitting lasers; Vertical cavity surface emitting lasers; (250.7260) Vertical cavity emitting lasers; (280.3420) Laser sensors;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
