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Optics Express

Optics Express

  • Vol. 16, Iss. 16 — Aug. 4, 2008
  • pp: 11915–11919

Tunable whispering gallery mode emission from a microdroplet in elastomer

Mitsunori Saito, Hiroya Shimatani, and Hideyuki Naruhashi  »View Author Affiliations

Optics Express, Vol. 16, Issue 16, pp. 11915-11919 (2008)

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A fluorescent microdroplet was formed in elastomer to facilitate handling and wavelength tuning. A methanol solution of rhodamine 6G was put into a solidifying polysiloxane resin with a needle. Addition of surfactant was effective to stabilize the droplet. Being excited by a laser pulse (532 nm, >50 μJ/mm2, 5 ns), the droplet exhibited a whispering gallery mode emission in the 570–610 nm wavelength range. The resonance peaks shifted as the droplet diameter expanded by elastomer deformation.

© 2008 Optical Society of America

OCIS Codes
(140.2050) Lasers and laser optics : Dye lasers
(140.3600) Lasers and laser optics : Lasers, tunable
(160.5470) Materials : Polymers
(230.4910) Optical devices : Oscillators
(230.5750) Optical devices : Resonators

ToC Category:
Lasers and Laser Optics

Original Manuscript: April 17, 2008
Revised Manuscript: July 13, 2008
Manuscript Accepted: July 20, 2008
Published: July 24, 2008

Mitsunori Saito, Hiroya Shimatani, and Hideyuki Naruhashi, "Tunable whispering gallery mode emission from a microdroplet in elastomer," Opt. Express 16, 11915-11919 (2008)

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