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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 12 — Jun. 15, 2010
  • pp: 1995–1997

Prolonged Raman lasing in size-stabilized salt-water microdroplets on a superhydrophobic surface

Y. Karadag, M. Gündoğan, M. Y. Yüce, H. Cankaya, A. Sennaroglu, and A. Kiraz  »View Author Affiliations


Optics Letters, Vol. 35, Issue 12, pp. 1995-1997 (2010)
http://dx.doi.org/10.1364/OL.35.001995


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Abstract

We demonstrate prolonged Raman lasing from individual salt-water microdroplets with 10 20 μm diameters located on a superhydrophobic surface. The mechanism is based on the absorption heating of a 1064 nm cw IR laser and the resonant heating of a 532 nm pulsed, pump laser. A clear hysteresis is observed in the lasing intensity as the droplet size is photothermally tuned by the IR laser, indicating a self-stabilization mechanism due to the resonant absorption of the pump laser. Using this mechanism, Raman lasing near 650 nm is sustained for up to 25 min, ~1000 times longer than lasing durations reported in previous studies.

© 2010 Optical Society of America

OCIS Codes
(140.3550) Lasers and laser optics : Lasers, Raman
(190.5650) Nonlinear optics : Raman effect
(230.3990) Optical devices : Micro-optical devices
(230.5750) Optical devices : Resonators
(350.3950) Other areas of optics : Micro-optics

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: April 5, 2010
Manuscript Accepted: May 13, 2010
Published: June 7, 2010

Citation
Y. Karadag, M. Gündoğan, M. Y. Yüce, H. Cankaya, A. Sennaroglu, and A. Kiraz, "Prolonged Raman lasing in size-stabilized salt-water microdroplets on a superhydrophobic surface," Opt. Lett. 35, 1995-1997 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-12-1995

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