Title :
Silicon-on-Insulator-Based Retroreflective Optical Marker Chips for Simultaneous Identification and Localization
Author :
Verbist, Marie ; Bogaerts, Wim ; Schrauwen, Jonathan ; Baets, Roel
Author_Institution :
Dept. of Inf. Technol., Ghent Univ., Ghent, Belgium
Abstract :
We demonstrate an omnidirectional, retroreflective optical marker in silicon on insulator that enables simultaneous identification and localization of objects. The most important chip requirement - its retroreflectivity - is realized by a large number of equally designed reflective ring resonator circuits, which operate at different angles of the incident light. The markers are characterized by an infrared camera that captures the response during flood exposure by a tunable infrared laser.
Keywords :
CMOS integrated circuits; diffraction gratings; integrated optics; integrated optoelectronics; optical beam splitters; optical couplers; optical filters; optical resonators; silicon-on-insulator; CMOS fabrication; combiner; filter; flood exposure; grating coupler; infrared camera; object identification; object localization; reflective ring resonator circuits; retroreflective optical marker chips; silicon-on-insulator; splitter; tunable infrared laser; Grating coupler; marker; nanophotonics; ring resonator; silicon on insulator (SOI);
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2009.2021567
