Results 51 to 60 of about 1,201,915 (262)

Acoustic whispering-gallery modes in optomechanical shells

New Journal of Physics, 2012
We numerically calculate the forms and frequencies of mechanical whispering-gallery modes in silica shells. Such modes were recently experimentally observed in water-filled optomechanical resonators, which constitute a bridge between optomechanics and ...
Gaurav Bahl, Xudong Fan, Tal Carmon
doaj   +1 more source

Single-mode tunable laser emission in the single-exciton regime from colloidal nanocrystals [PDF]

, 2013
Whispering-gallery-mode resonators have been extensively used in conjunction with different materials for the development of a variety of photonic devices.
Brambilla, Gilberto, Li, Chunyong, Grivas, Christos, Ding, Ming, Lagoudakis, Pavlos, Manna, Liberato, Wang, Pengfei, Andreakou, Peristera   +7 more
core   +1 more source

Modal domains and selectivity in large square lasers

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
Modes in square resonators have C4v symmetry. A special set of modes in these resonators have odd parities and behave like whispering gallery modes. These quasi-whispering gallery modes have high quality factors and exhibit interesting features.
Liming Liu, Ziyuan Li, Haroldo T. Hattori   +2 more
doaj   +1 more source

Shaping Optical Microresonators on the Surface of Optical Fibers With Negative Effective Radius Variations

IEEE Photonics Journal, 2021
We examine moderate CO2 laser heating as a method of forming negative effective radius variations in conventional optical fiber. Fiber samples were subjected to focused CO2 laser radiation in the form of 100 ms pulses with power 0.36 to 1.3 W and ...
Dmitry V. Krisanov, Alexander S. Nesterok, Ilya D. Vatnik   +2 more
doaj   +1 more source

Lasing of whispering gallery modes in optofluidic microcapillaries.

Optics Express, 2016
This paper demonstrates lasing of the whispering gallery modes in polymer coated optofluidic capillaries and their application to refractive index sensing.
A. François, N. Riesen, Kirsty Gardner, T. Monro, A. Meldrum   +4 more
semanticscholar   +1 more source

Optical Whispering-Gallery-Mode Microbubble Sensors

Micromachines, 2022
Whispering-gallery-mode (WGM) microbubble resonators are ideal optical sensors due to their high quality factor, small mode volume, high optical energy density, and geometry/design/structure (i.e., hollow microfluidic channels). When used in combination with microfluidic technologies, WGM microbubble resonators can be applied in chemical and biological
Xuyang Zhao, Zhihe Guo, Yi Zhou, Junhong Guo, Zhiran Liu, Yuxiang Li, Man Luo, Xiang Wu   +7 more
openaire   +3 more sources

Hollow whispering gallery resonators [PDF]

, 2018
In recent years, whispering gallery mode (WGM) devices have extended their functionality across a number of research fields from photonics device development to sensing applications.
Lei, Fuchuan, Jonathan M. Ward, Nic Chormaic, Síle, Síle Nic Chormaic, Yong Yang, Fuchuan Lei, Sho Kasumie, Ramgopal Madugani, Ward, Jonathan M., Madugani, Ramgopal, Kasumie, Sho, Yang, Yong   +11 more
core   +1 more source

Open whispering gallery mode resonators

Optics Letters
There are some issues with traditional whispering gallery mode (WGM) resonators such as poor light extraction and a dense mode spectrum. In this paper, we introduce a solution to these limitations by proposing open WGM (OWGM) resonators that effectively reduce the mode density and enable directional radiation through a connected waveguide at the ...
D. R. Kazanov, A. M. Monakhov
openaire   +3 more sources

Whispering gallery resonators for optical sensing [PDF]

, 2017
In recent years, whispering gallery mode devices have extended their functionality across a number of research fields from photonics to sensing applications.
Lei, Fuchuan, Nic Chormaic, Síle, Síle Nic Chormaic, Yong Yang, Ward, Jonathan, Ramgopal Madugani, Sho Kasumie, Fuchuan Lei, Jonathan Ward, Madugani, Ramgopal, Kasumie, Sho, Yang, Yong   +11 more
core   +1 more source

Coupling coefficients of the Spherical dielectric microresonators with whispering gallery modes

Vìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2015
The calculation results of the Spherical dielectric microresonators coupling coefficients with whispering gallery modes are presented. Microresonator coupling coefficients as a functions of main parameters is considered. S-matrix frequency dependences of 
A. A. Trubin
doaj   +1 more source