Sensing and lasing applications of whispering gallery mode microresonators

Zheng, Yu; Wu, Zhifang; Shum, Perry Ping; Xu, Zhilin; Keiser, Gerd; Humbert, Georges; Zhang, Hailiang; Zeng, Shuwen; Dinh, Xuan Quyen

doi:10.29026/oea.2018.180015

Cited by 57 publications

(47 citation statements)

References 65 publications

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“…108,109 Microresonator structures are excellent candidates to reflect or absorb a given wavelength. [110][111][112] A number of nanophotonic structures, such as conical pillar arrays, dielectric resonator metasurfaces, metal-dielectric-metal resonators, and multilayer pyramidal nanostructures, are explored to design daytime passive radiative coolers. These structures possess the capability to tailor the spectral selectivity of the surfaces.…”

Section: Radiative Coolers Based On 2d Nanophotonic Structuresmentioning

confidence: 99%

Recent advances and progresses in photonic devices for passive radiative cooling application: a review

Goyal

Kumar

2020

J. Nanophoton.

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This review covers the recent progress made in the nanophotonic devices-based daytime passive radiative coolers. The radiative cooling capabilities along with the structural description of various natural species are discussed. The design principle along with key characteristics of the omnidirectional solar reflectors as well as thermal adiators is discussed in detail. Several analogues planner one-dimensional and two-dimensional photonic nanostructures and their current state-of-the-art techniques have been discussed. For each kind of the photonic structure, the novelty, measurement principle, and their respective daytime radiative cooling capability are presented. The reported works and the corresponding results predict the possibility to realize an efficient and commercially viable radiator for passive radiative cooling applications.

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Section: Radiative Coolers Based On 2d Nanophotonic Structuresmentioning

confidence: 99%

Recent advances and progresses in photonic devices for passive radiative cooling application: a review

Goyal

Kumar

2020

J. Nanophoton.

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“…So far, several major approaches have been developed 7 , including electrochemical sensors 8 , calorimetric sensors 9 , acoustic sensors 10 and optical sensors 11 . Optical methods 12 , in particular in the mid-IR range, are usually straightforward and have short response time, long lifetime, high sensitivity and selectivity. Generally, there are three mechanisms for optical gas sensing, including (i) refractive index (RI) sensing based on the real part of gas RI 13 , (ii) non-dispersive infrared (NDIR) absorption sensing based on the imaginary part of gas RI 14 , and (iii) spectroscopy based on the gas molecular spectral fingerprint 15 .…”

Section: Introductionmentioning

confidence: 99%

On-chip readout plasmonic mid-IR gas sensor

Chen¹,

Li²,

Zheng³

et al. 2020

Opto-Electronic Advances

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Gas identification and concentration measurements are important for both understanding and monitoring a variety of phenomena from industrial processes to environmental change. Here a novel mid-IR plasmonic gas sensor with on-chip direct readout is proposed based on unity integration of narrowband spectral response, localized field enhancement and thermal detection. A systematic investigation consisting of both optical and thermal simulations for gas sensing is presented for the first time in three sensing modes including refractive index sensing, absorption sensing and spectroscopy, respectively. It is found that a detection limit less than 100 ppm for CO 2 could be realized by a combination of surface plasmon resonance enhancement and metal-organic framework gas enrichment with an enhancement factor over 8000 in an ultracompact optical interaction length of only several microns. Moreover, on-chip spectroscopy is demonstrated with the compressive sensing algorithm via a narrowband plasmonic sensor array. An array of 80 such sensors with an average resonance linewidth of 10 nm reconstructs the CO 2 molecular absorption spectrum with the estimated resolution of approximately 0.01 nm far beyond the state-of-the-art spectrometer. The novel device design and analytical method are expected to provide a promising technique for extensive applications of distributed or portable mid-IR gas sensor.

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“…[26,27] Despite much progress in terms of sensitivity improvement, many of these WGM sensors only operate under sophisticated laboratory environment with complicated experimental procedures and bulky instruments. [19,20,[28][29][30] The experimental setup is usually cumbersome, with large volumetric reagent consumption and long assay time, which makes them difficult to perform on-site, multiplexed and rapid sensing tests. For example, one of the major challenges in biomedical applications especially for disease diagnosis is the detection of multiple biomarkers with one single chip using minimal sample volume.…”

Section: Introductionmentioning

confidence: 99%

Microfluidic Whispering Gallery Mode Optical Sensors for Biological Applications

Wang

Zeng

Humbert

et al. 2020

Laser & Photonics Reviews

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Whispering gallery mode (WGM) resonators have been exploited as a highly sensitive and efficient sensing technique in the past few years. They offer the advantages of ultrahigh sensitivity, compact size, and label-free sensing capability. More recently, with the rapid development of microfluidic technologies, many integrated WGM sensors, by combining the portability of lab-on-chip devices and the high sensitivity of WGM resonators, have emerged. The capabilities of efficient sample handling and multiplexed analyte detection offered by these systems have led to many biological and chemical sensing applications, especially for the detection of single particle or biomolecule. In this review, different sensing mechanisms based on integrated whispering gallery mode resonators are introduced. Various geometries of WGM cavities including solid, liquid, and hollow resonators and a detailed discussion on their integration with microfluidic devices are also covered. Different types of packaging schemes and integration methods are compared in terms of ease of fabrication and device performance. Finally, recent applications of microfluidic-based WGM sensors for detecting biological and chemical target molecules are discussed, with a prospect on future challenges and trends of development in microfluidics for multiplexed detection.

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Sensing and lasing applications of whispering gallery mode microresonators

Cited by 57 publications

References 65 publications

Recent advances and progresses in photonic devices for passive radiative cooling application: a review

Recent advances and progresses in photonic devices for passive radiative cooling application: a review

On-chip readout plasmonic mid-IR gas sensor

Microfluidic Whispering Gallery Mode Optical Sensors for Biological Applications

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