Ultrasensitive real-time measurement of dissipation and dispersion in a whispering-gallery mode microresonator

Joachim Knittel; Jong H. Chow; Malcolm B. Gray; Michael A. Taylor; Warwick P. Bowen

doi:10.1364/OL.38.001915

Ultrasensitive real-time measurement of dissipation and dispersion in a whispering-gallery mode microresonator

Joachim Knittel, Jong H. Chow^*, Malcolm B. Gray, Michael A. Taylor, Warwick P. Bowen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

We present the characterization of the recently developed cavity enhanced amplitude modulation laser absorption spectroscopy (CEAMLAS) technique to measure dissipation within the evanescent field of a whispering-gallery mode resonator, and demonstrate the parallel use of CEAMLAS and the Pound-Drever-Hall measurement techniques to provide both dissipation and dispersive real-time microresonator measurements. Using an atomic force microscope tip, we introduce a controlled perturbation to the evanescent field of the resonator. In this case, dissipative sensing allows up to 16.8 dB sensitivity improvement over dispersive measurements, providing the possibility for enhanced sensitivity in application such as biomolecule detection.

Original language	English
Pages (from-to)	1915-1917
Number of pages	3
Journal	Optics Letters
Volume	38
Issue number	11
DOIs	https://doi.org/10.1364/OL.38.001915
Publication status	Published - 1 Jun 2013

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title = "Ultrasensitive real-time measurement of dissipation and dispersion in a whispering-gallery mode microresonator",

abstract = "We present the characterization of the recently developed cavity enhanced amplitude modulation laser absorption spectroscopy (CEAMLAS) technique to measure dissipation within the evanescent field of a whispering-gallery mode resonator, and demonstrate the parallel use of CEAMLAS and the Pound-Drever-Hall measurement techniques to provide both dissipation and dispersive real-time microresonator measurements. Using an atomic force microscope tip, we introduce a controlled perturbation to the evanescent field of the resonator. In this case, dissipative sensing allows up to 16.8 dB sensitivity improvement over dispersive measurements, providing the possibility for enhanced sensitivity in application such as biomolecule detection.",

author = "Joachim Knittel and Chow, {Jong H.} and Gray, {Malcolm B.} and Taylor, {Michael A.} and Bowen, {Warwick P.}",

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T1 - Ultrasensitive real-time measurement of dissipation and dispersion in a whispering-gallery mode microresonator

AU - Knittel, Joachim

AU - Chow, Jong H.

AU - Gray, Malcolm B.

AU - Taylor, Michael A.

AU - Bowen, Warwick P.

PY - 2013/6/1

Y1 - 2013/6/1

N2 - We present the characterization of the recently developed cavity enhanced amplitude modulation laser absorption spectroscopy (CEAMLAS) technique to measure dissipation within the evanescent field of a whispering-gallery mode resonator, and demonstrate the parallel use of CEAMLAS and the Pound-Drever-Hall measurement techniques to provide both dissipation and dispersive real-time microresonator measurements. Using an atomic force microscope tip, we introduce a controlled perturbation to the evanescent field of the resonator. In this case, dissipative sensing allows up to 16.8 dB sensitivity improvement over dispersive measurements, providing the possibility for enhanced sensitivity in application such as biomolecule detection.

AB - We present the characterization of the recently developed cavity enhanced amplitude modulation laser absorption spectroscopy (CEAMLAS) technique to measure dissipation within the evanescent field of a whispering-gallery mode resonator, and demonstrate the parallel use of CEAMLAS and the Pound-Drever-Hall measurement techniques to provide both dissipation and dispersive real-time microresonator measurements. Using an atomic force microscope tip, we introduce a controlled perturbation to the evanescent field of the resonator. In this case, dissipative sensing allows up to 16.8 dB sensitivity improvement over dispersive measurements, providing the possibility for enhanced sensitivity in application such as biomolecule detection.

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DO - 10.1364/OL.38.001915

M3 - Article

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VL - 38

SP - 1915

EP - 1917

JO - Optics Letters

JF - Optics Letters

IS - 11

ER -

Ultrasensitive real-time measurement of dissipation and dispersion in a whispering-gallery mode microresonator

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