Change in the spectrum of optical whispering-gallery modes in a quasi-cylindrical microresonator caused by an acoustic pressure pulse

Bogatyrev, V. A.; Vovchenko, V. I.; Krasyuk, I. K.; Oboev, V.A.; Semenov, A. Yu.; Sychugov, V A; Torchigin, V.P.

doi:10.1070/qe2002v032n06abeh002224

Cited by 7 publications

(3 citation statements)

References 10 publications

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“…In this case, the WGM shifts in frequency are due to the mechanical perturbation of the optical mode by the membrane [244]. Acoustic pressure pulses have also been monitored by means of the induced changes in the spectrum of optical WGMs in a quasi-cylindrical microresonator [245]. More recently, perturbations of polar WGMs in solid polystyrene due to the application of uniaxial pressure have been studied [175].…”

Section: Sensingmentioning

confidence: 99%

Whispering gallery mode sensors

2015

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We present a comprehensive overview of sensor technology exploiting optical whispering gallery mode (WGM) resonances. After a short introduction we begin by detailing the fundamental principles and theory of WGMs in optical microcavities and the transduction mechanisms frequently employed for sensing purposes. Key recent theoretical contributions to the modeling and analysis of WGM systems are highlighted. Subsequently we review the state of the art of WGM sensors by outlining efforts made to date to improve current detection limits. Proposals in this vein are numerous and range, for example, from plasmonic enhancements and active cavities to hybrid optomechanical sensors, which are already working in the shot noise limited regime. In parallel to furthering WGM sensitivity, efforts to improve the time resolution are beginning to emerge. We therefore summarize the techniques being pursued in this vein. Ultimately WGM sensors aim for real-world applications, such as measurements of force and temperature, or alternatively gas and biosensing. Each such application is thus reviewed in turn, and important achievements are discussed. Finally, we adopt a more forward-looking perspective and discuss the outlook of WGM sensors within both a physical and biological context and consider how they may yet push the detection envelope further.

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Section: Sensingmentioning

confidence: 99%

Whispering gallery mode sensors

2015

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“…Due to the low loss of typically used transparent materials, and the very smooth surfaces that can be obtained, these modes are capable of reaching ultrahigh Q factors greater that 10 10 [4]. The achievable ultrahigh quality factors have made whispering gallery resonators (WGRs) excellent candidates for sensing [5][6][7][8][9][10][11]and for observing non-linear effects [12,[12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Measurement of absolute radius, refractive index and dispersion of a long cylinder

Couillard,

Bianucci

2022

Preprint

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Long cylinders, such as optical fibers, are some of the most widely used photonic devices. The radius and refractive index of these fibers are therefore fundamentally important parameters in determining their performance. We have developed a method to determine the absolute radius, refractive index, and chromatic dispersion of a long cylinder using only the resonance wavelengths of the whispering gallery modes around its circumference for two different polarizations. Since this method only requires the measurement of resonance wavelengths, it is non-destructive and it can be performed using standard equipment. As a proof-of-concept, we demonstrate the method on a 125𝜇𝑚 optical fiber and an 80𝜇𝑚 borosilicate capillary fiber with thick walls, obtaining values for the diameter and the refractive index with an accuracy of 2𝑛𝑚 and 2 × 10 −5 , respectively.

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“…Unprecedented properties of whispering-gallery-mode resonators (WGMRs) [1][2][3][4][5][6], including extraordinary quality factors and extremely small mode volume defined their use in numerous contemporary applications, such as photonics, nonlinear optics, and precise measurements [7]. WGMRs are widely used to realize various effective detectors [8][9][10][11]. Resonators made of electro-optical materials (e.g.…”

Section: Introductionmentioning

confidence: 99%

Magneto-optical effects in a high-Q whispering-gallery-mode resonator with a large Verdet constant

et al. 2021

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We have studied magneto-optical effects in an optical whispering-gallery-mode resonator (WGMR) manufactured from a Faraday-rotator material with, to the best of our knowledge, the record quality factor (Q = 1.45 × 10 8 ) achieved for such materials. We have experimentally measured the eigenfrequencies' deviation amplitude under the application of an external magnetic field and demonstrated the polarization plane declination over the light path. An analytical model for arbitrary magnetic field geometries in magneto-optic birefringent WRMRs has been developed.

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Change in the spectrum of optical whispering-gallery modes in a quasi-cylindrical microresonator caused by an acoustic pressure pulse

Cited by 7 publications

References 10 publications

Whispering gallery mode sensors

Whispering gallery mode sensors

Measurement of absolute radius, refractive index and dispersion of a long cylinder

Magneto-optical effects in a high-Q whispering-gallery-mode resonator with a large Verdet constant

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