title: Development and characterization of piezoelectrically actuated corner cube retroreflectors for applications in free-space optical sensor network.
abstract: In this paper, we report the development of an optical sensor network (OSN) based on piezoelectrically actuated corner cube retroreflectors (PA-CCRs). PA-CCRs were fabricated by microelectromechanical systems processes and assembled by aligning horizontally actuated mirrors and vertical side walls in a holder, which allows mass production. Fabricated PA-CCRs showed a tilting angle by more than 1.5 deg at 5 V bias voltage. A 3 dB cutoff frequency was measured to be in the range of 3.5 kHz. To show the feasilbility, an OSN was established based on fabricated PA-CCRs for on-off keying passive transmission links. The results demonstrated data transmission at a rate up to 5 kb/s.
authors.affiliation: Program for Nanomedical Science and Technology, Yonsei University, Seoul, Korea.
authors.forename: Jiyu
authors.initials: J
authors.lastname: Won
authors.forename: Youngjin
authors.initials: Y
authors.lastname: Oh
authors.forename: Jongcheol
authors.initials: J
authors.lastname: Park
authors.forename: Jae Young
authors.initials: JY
authors.lastname: Park
authors.forename: Min-Sik
authors.initials: MS
authors.lastname: Jo
authors.forename: Donghyun
authors.initials: D
authors.lastname: Kim
mesh_terms: D004867:Equipment Design; D055617:Micro-Electrical-Mechanical Systems / Q000295:instrumentation*; D055096:Optical Devices; D010783:Photometry; D018511:Systems Integration; D014159:Transducers