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Optics Letters

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  • Vol. 11, Iss. 10 — Oct. 1, 1986
  • pp: 614–616

Some characteristics of a droplet whispering-gallery-mode laser

H.-B. Lin, A. L. Huston, B. L. Justus, and A. J. Campillo  »View Author Affiliations


Optics Letters, Vol. 11, Issue 10, pp. 614-616 (1986)
http://dx.doi.org/10.1364/OL.11.000614


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Abstract

We report lasing characteristics of 40–60-μm-diameter Rhodamine 590/water solution droplets pumped by a 20-nsec-duration Q-switched laser. The Rhodamine/water solution provides a useful model system for studying the properties of oscillators based on whispering-gallery-wave spherical cavities. The low threshold for lasing, 104 W/cm2 for 10−4M solutions, is consistent with particle size and a cavity Q factor of 104. Portions of the droplet lase purely in transverse electric (TE) modes, while other portions contain both TE and lower-Q transverse magnetic modes. In the far field, the lasing droplet approximates a coherent point source emitting in all directions.

© 1986 Optical Society of America

History
Original Manuscript: May 19, 1986
Manuscript Accepted: July 9, 1986
Published: October 1, 1986

Citation
H.-B. Lin, A. L. Huston, B. L. Justus, and A. J. Campillo, "Some characteristics of a droplet whispering-gallery-mode laser," Opt. Lett. 11, 614-616 (1986)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-11-10-614


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