Experimental demonstration of a bat microresonator

Yang, Yong; Crespo-Ballesteros, Manuel; Sumetsky, M.

doi:10.1109/cleo/europe-eqec52157.2021.9542687

Cited by 3 publications

(3 citation statements)

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“…Here we present potentially feasible approaches to address the problems of spatially resolved and spatially independent sensing based on the recent progress in the development of the SMR theory [39,40] and new methods of SMR fabrication [41][42][43].…”

Section: Advances In Science and Technology To Meet Challengesmentioning

confidence: 99%

“…(c) Illustration of a bat microresonator. (d) The measured spectrogram of a bat microresonator fabricated in [ 43 ]. © [2021] IEEE.…”

Section: Whispering Gallery Mode Sensors: Towards Spatially Resolved ...mentioning

confidence: 99%

“…These SMRs, illustrated in figure 5 (c), were called the bat microresonators since the profile of its original design [ 40 ] resembled the profile of a bat. A bat microresonator with the spectrogram shown in figure 5 (d) was experimentally demonstrated in [ 43 ]. Displacement of a microparticle along the surface area with a uniform eigenstate amplitude can be separated since it does not perturb the corresponding eigenwavelength (in contrast to other eigenwavelengths of this SMR) unless the microparticle changes its structure or orientation.…”

Section: Whispering Gallery Mode Sensors: Towards Spatially Resolved ...mentioning

confidence: 99%

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Roadmap on optical sensors

Ferreira,

Brambilla,

Thévenaz

et al. 2023

J. Opt.

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Optical sensors and sensing technologies are playing a more and more important role in our modern world. From micro-probes to large devices used in such diverse areas like medical diagnosis, defence, monitoring of industrial and environmental conditions, optics can be used in a variety of ways to achieve compact, low cost, stand-off sensing with extreme sensitivity and selectivity. Actually, the challenges to the design and functioning of an optical sensor for a particular application requires intimate knowledge of the optical, material, and environmental properties that can affect its performance. This roadmap on optical sensors addresses different technologies and application areas. It is constituted by twelve contributions authored by world-leading experts, providing insight into the current state-of-the-art and the challenges their respective fields face. Two articles address the area of optical fibre sensors, encompassing both conventional and specialty optical fibres. Several other articles are dedicated to laser-based sensors, micro- and nano-engineered sensors, whispering-gallery mode and plasmonic sensors. The use of optical sensors in chemical, biological and biomedical areas is discussed in some other papers. Different approaches required to satisfy applications at visible, infrared and THz spectral regions are also discussed.

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Section: Advances In Science and Technology To Meet Challengesmentioning

confidence: 99%

“…(c) Illustration of a bat microresonator. (d) The measured spectrogram of a bat microresonator fabricated in [ 43 ]. © [2021] IEEE.…”

Section: Whispering Gallery Mode Sensors: Towards Spatially Resolved ...mentioning

confidence: 99%

Section: Whispering Gallery Mode Sensors: Towards Spatially Resolved ...mentioning

confidence: 99%

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Roadmap on optical sensors

Ferreira,

Brambilla,

Thévenaz

et al. 2023

J. Opt.

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High Q-factor reconfigurable microresonators induced in side-coupled optical fibres

Vassiliev,

Sumetsky

2023

Light Sci Appl

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High Q-factor monolithic optical microresonators found numerous applications in classical and quantum optical signal processing, microwave photonics, ultraprecise sensing, as well as fundamental optical and physical sciences. However, due to the solid structure of these microresonators, attaining the free spectral range tunability of most of them, critical for several of these applications, was, so far, unfeasible. To address this problem, here we experimentally demonstrate that the side-coupling of coplanar bent optical fibres can induce a high Q-factor whispering gallery mode optical microresonator. By changing the curvature radius of fibres from the centimetre order to the millimetre order, we demonstrate fully mechanically reconfigurable optical microresonators with dimensions varying from the millimetre order to 100-micron order and free spectral range varying from a picometre to ten picometre order. The developed theory describes the formation of the discovered microresonators and their major properties in a reasonable agreement with the experimental data. The new microresonators may find applications in cavity QED, microresonator optomechanics, frequency comb generation with tuneable repetition rate, tuneable lasing, and tuneable processing and delay of optical pulses.

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