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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 17 — Sep. 1, 2013
  • pp: 3422–3425

Ultraviolet light detection using an optical microcavity

Audrey Harker, Simin Mehrabani, and Andrea M. Armani  »View Author Affiliations

Optics Letters, Vol. 38, Issue 17, pp. 3422-3425 (2013)

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Ultraviolet (UV) light exposure is connected to both physical and psychological diseases. As such, there is significant interest in developing sensors that can detect UV light in the mW/cm2 intensity range with a high signal-to-noise ratio. In this Letter, we demonstrate a UV sensor based on a silica integrated optical microcavity that has a linear operating response in both the forward and backward directions from 14 to 53mW/cm2. The sensor response agrees with the developed predictive theory based on a thermodynamic model. Additionally, the signal-to-noise ratio is above 100 at physiologically relevant intensity levels.

© 2013 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(130.6010) Integrated optics : Sensors
(230.5750) Optical devices : Resonators

ToC Category:
Integrated Optics

Original Manuscript: July 23, 2013
Revised Manuscript: August 6, 2013
Manuscript Accepted: August 6, 2013
Published: August 28, 2013

Virtual Issues
Vol. 8, Iss. 10 Virtual Journal for Biomedical Optics

Audrey Harker, Simin Mehrabani, and Andrea M. Armani, "Ultraviolet light detection using an optical microcavity," Opt. Lett. 38, 3422-3425 (2013)

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