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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 12 — Dec. 1, 2013
  • pp: 3254–3259

High pressure tuning of whispering gallery mode resonances in a neodymium-doped glass microsphere

L. L. Martin, S. F. León-Luis, C. Pérez-Rodríguez, I. R. Martín, U. R. Rodríguez-Mendoza, and V. Lavín  »View Author Affiliations

JOSA B, Vol. 30, Issue 12, pp. 3254-3259 (2013)

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The effects of pressure on the behavior of optical microspherical resonators, prepared from Nd3+ doped, barium titanium silicate glass, have been studied up to 5 GPa inside a diamond anvil cell using silicone oil as the hydrostatic transmission medium and ruby emission lines as the pressure gauge. The optical resonances, known as whispering gallery modes, were observed within the broad emission band of the Nd3+ ions, and the resonances were identified as a function of pressure. By means of simulations, it was found that the average wavelength position of both transverse electric and magnetic modes depended on the radius and refractive index of the sphere, but not on the refractive index of the pressure transmitting medium under the experimental conditions. This was used to define the average sensitivity of the resonant modes with the pressure. Therefore, a value of 6.5×104GPa1 has been obtained for this sensitivity, which is higher than the value for ruby, the most conventional pressure sensor.

© 2013 Optical Society of America

OCIS Codes
(140.4780) Lasers and laser optics : Optical resonators
(280.4788) Remote sensing and sensors : Optical sensing and sensors
(280.5475) Remote sensing and sensors : Pressure measurement

ToC Category:
Remote Sensing and Sensors

Original Manuscript: July 23, 2013
Revised Manuscript: October 29, 2013
Manuscript Accepted: October 31, 2013
Published: November 20, 2013

L. L. Martin, S. F. León-Luis, C. Pérez-Rodríguez, I. R. Martín, U. R. Rodríguez-Mendoza, and V. Lavín, "High pressure tuning of whispering gallery mode resonances in a neodymium-doped glass microsphere," J. Opt. Soc. Am. B 30, 3254-3259 (2013)

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