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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 18 — Sep. 15, 2007
  • pp: 2644–2646

Microresonator array for high-resolution spectroscopy

Gustav Schweiger, Ralf Nett, and Thomas Weigel  »View Author Affiliations


Optics Letters, Vol. 32, Issue 18, pp. 2644-2646 (2007)
http://dx.doi.org/10.1364/OL.32.002644


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Abstract

We investigated the properties of an array of spherical microresonators used as a miniaturized high-resolution spectroscopic device. Sixteen spherical microspheres made from polymethyl methacrylate were placed on a microscope slide serving as an optical wave guide. Light of a tunable narrowband laser source was coupled into this slide so that an evanescent wave was excited on the topside of the slide, where the resonators were placed. This evanescent field generated a particular intensity pattern in the array that depended sensitively on the wavelength. After calibration, that pattern was recorded by a CCD camera and used to identify the wavelength with a resolution of R λ Δ λ = 7 × 10 4 .

© 2007 Optical Society of America

OCIS Codes
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(130.3120) Integrated optics : Integrated optics devices
(260.5740) Physical optics : Resonance
(300.6320) Spectroscopy : Spectroscopy, high-resolution
(350.3950) Other areas of optics : Micro-optics

ToC Category:
Spectroscopy

History
Original Manuscript: June 4, 2007
Manuscript Accepted: July 8, 2007
Published: September 4, 2007

Virtual Issues
Vol. 2, Iss. 10 Virtual Journal for Biomedical Optics

Citation
Gustav Schweiger, Ralf Nett, and Thomas Weigel, "Microresonator array for high-resolution spectroscopy," Opt. Lett. 32, 2644-2646 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-18-2644


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