WAVELENGTH DETECTOR USING A PAIR OF METAL-SEMICONDUCTOR-METAL PHOTODETECTORS WITH SUBWAVELENGTH FINGER SPACINGS

Authors
CHEN E CHOU SY
Citation
E. Chen et Sy. Chou, WAVELENGTH DETECTOR USING A PAIR OF METAL-SEMICONDUCTOR-METAL PHOTODETECTORS WITH SUBWAVELENGTH FINGER SPACINGS, Electronics Letters, 32(16), 1996, pp. 1510-1511
Citations number
11
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
32
Issue
16
Year of publication
1996
Pages
1510 - 1511
Database
ISI
SICI code
0013-5194(1996)32:16<1510:WDUAPO>2.0.ZU;2-F
Abstract
A wavelength detector that employs two metal-semiconductor-metal photo detectors with different subwavelength finger spacings is proposed and demonstrated. The resonance effect of the subwavelength-spaced finger s results in a photocurrent ratio that has one-to-one correspondence w ith the wavelengths of the monochromatic incident light. The device ha s a spectral range of 450 - 800nm with a resolution of 5nm. This devic e makes automatic wavelength calibration in optical instrumentation fe asible.