ANGLE MEASUREMENT USING SURFACE-PLASMON-RESONANCE HETERODYNE INTERFEROMETRY - A NEW METHOD

Authors
GUO JH ZHU ZM DENG WM SHEN S
Citation
Jh. Guo et al., ANGLE MEASUREMENT USING SURFACE-PLASMON-RESONANCE HETERODYNE INTERFEROMETRY - A NEW METHOD, Optical engineering, 37(11), 1998, pp. 2998-3001
Citations number
16
Categorie Soggetti
Optics
Journal title
Optical engineering → ACNP
ISSN journal
00913286
Volume
37
Issue
11
Year of publication
1998
Pages
2998 - 3001
Database
ISI
SICI code
0091-3286(1998)37:11<2998:AMUSHI>2.0.ZU;2-P
Abstract
A novel optical method for high-resolution angle measurement based on surface plasmon resonance (SPR) is presented. The phase difference bet ween p and s polarization states when SPR takes place is very sensitiv e to the angle of incidence. Heterodyne interferometry is employed to measure this phase difference and thus to measure small angles. The fe asibility of this method is demonstrated. The measurement resolution o f 2 x 10(-5) deg can be achieved by this method. (C) 1998 Society of P hoto-Optical instrumentation Engineers. [S0091-3286(98)01411-1].