High-resolution angular measurement using surface-plasmon-resonance via phase interrogation at optimal incident wavelengths

Autor: Jing-Lun Lin, Railing Chang, Sheng-Yu Su, Hai-Pang Chiang, P.T. Leung
Rok vydání: 2005
Předmět:
Zdroj: Optics letters. 30(20)
ISSN: 0146-9592
Popis: It is demonstrated that ultrahigh-resolution angular measurement can be achieved via surface-plasmon-resonance excitation in which the phase difference between p- and s-polarized reflected waves is monitored as a function of the incidence angle. Resolutions down to 1.9 x 10(-6) deg are obtained by performing the measurements at optimal incident wavelengths. This represents an order of magnitude improvement compared with previously reported values.
Databáze: OpenAIRE