Results 191 to 200 of about 128,373 (221)

Towards next-generation label-free biosensors: recent advances in whispering gallery mode sensors.

Lab on a Chip, 2017
Whispering gallery mode biosensors have been widely exploited over the past decade to study molecular interactions by virtue of their high sensitivity and applicability in real-time kinetic analysis without the requirement to label.
Eugene Kim, M. Baaske, F. Vollmer
semanticscholar   +1 more source

Dynamically Modulated GaN Whispering Gallery Lasing Mode for Strain Sensor

Advanced Functional Materials, 2019
The continuous development of strain sensors offers significant opportunities for improving human–machine interfaces and health monitoring. The dynamically modulated lasing mode is a novel approach to realize a flexible, noncontact, high color ...
Yiyao Peng, Junfeng Lu, Dengfeng Peng, Wenda Ma, Fangtao Li, Qiushuo Chen, Xiandi Wang, Junlu Sun, Haitao Liu, Caofeng Pan   +9 more
semanticscholar   +1 more source

Whispering Gallery Modes in Optical Microcavities

2020
The whispering-gallery-mode microcavities have been widely applied in chemical and biological sensing due to their tiny mode volume and high-quality factor. In this chapter, the exact and approximate solutions of the whispering gallery modes of microspheres, microbottles, microdisks, and microtoroids are studied in an analytical manner.
Frank Vollmer, Deshui Yu
openaire   +2 more sources

Whispering gallery modes in coated silica microspheres

SPIE Proceedings, 2012
Silica microspheres were made by melting the tip of a standard telecom fiber and were coated with a 70SiO2 - 30 HfO2 sol-gel derived glass activated by 0.3 mol % of Er3+ ions. The samples were coated using a dip coating apparatus. The thickness of the coating was estimated to be around 1 μm.
Ristic, Davor, Chiasera, Alessandro, Moser, Enrico, Féron, Patrice, Cibiel, Gilles, Ivanda, Mile, Righini, Giancarlo C., Ferrari, Maurizio   +7 more
openaire   +6 more sources

Engineering the Absorption and Field Enhancement Properties of Au-TiO2 Nanohybrids via Whispering Gallery Mode Resonances for Photocatalytic Water Splitting.

ACS Nano, 2016
Recently, surface plasmon resonance (SPR) effects have been widely used to construct photocatalysts which are active in the visible spectral region. Such plasmonic photocatalysts usually comprise a semiconductor material transparent in the visible range (
Jianming Zhang, Xin Jin, P. I. Morales-Guzman, Xin Yu, Hong Liu, Hua Zhang, L. Razzari, J. Claverie   +7 more
semanticscholar   +1 more source

Piezoelectric Effect Tuning on ZnO Microwire Whispering-Gallery Mode Lasing.

ACS Nano, 2018
We report a dynamic tuning on coherent light emission wavelengths of single ZnO microwire by using the piezoelectric effect. Owing to the dominant role occupied by the piezoelectric polarization effect in the wurtzite-structure ZnO microwire, the ...
Junfeng Lu, Chunxiang Xu, Fangtao Li, Zheng Yang, Yiyao Peng, Xiaoyi Li, Miaoling Que, Caofeng Pan, Zhong Lin Wang   +8 more
semanticscholar   +1 more source

Whispering-gallery laser resonators. I. Diffraction of whispering-gallery modes

IEEE Journal of Quantum Electronics, 1991
Whispering-gallery optics for use at soft X-ray and extreme ultraviolet wavelengths are examined for their potential applications in laser resonators. An examination is made of beam divergence at the exit of a whispering gallery resonator. The properties of whispering-gallery eigenmodes are reviewed, and the features of their Fourier transforms ...
J.P. Braud, Peter L. Hagelstein
openaire   +2 more sources

Whispering gallery mode microresonators: Fundamentals and applications

Rivista Del Nuovo Cimento, 2011
Confinement of light into small volumes has become an essential requirement for photonic devices; examples of this trend are provided by optical fibers, integrated optical circuits, semiconductor lasers, and photonic crystals. Optical dielectric resonators supporting Whispering Gallery Modes (WGMs) represent another class of cavity devices with ...
GC Righini, Y Dumeige, P Féron, M Ferrari, G Nunzi Conti, D Ristic, S Soria   +6 more
openaire   +5 more sources

Whispering-gallery mode hexagonal micro-/nanocavity lasers [Invited]

Photonics Research, 2019
Whispering-gallery-mode (WGM) hexagonal optical micro-/nanocavities can be utilized as high-quality (Q) resonators for realizing compact-size low-threshold lasers.
Yuede Yang, Mingying Tang, Fu-Li Wang, Zhixiong Xiao, J. Xiao, Yongzhen Huang   +5 more
semanticscholar   +1 more source

Polymeric whispering gallery mode micro-resonators

2016 IEEE Photonics Conference (IPC), 2016
We review fabrication and optics of polymeric high-Q whispering gallery mode resonators. They are employed as bio-sensors featuring selective parallel functionalization of arrays and integration into lab-on-a-chip systems. Liquid crystalline elastomers enable wide tunability of resonances.
Kalt, H, Siegle, T, Krammer, S, Flatae, AM, Schierle, S, Richter, B, Nocentini, S, Parmeggiani, C, Zeng, H, Burresi, M, Wiersma, DS, Wondimu, SF, Schuch, P, Koos, C   +13 more
openaire   +4 more sources