نتایج جستجو برای: optical resonator

تعداد نتایج: 275131  

2015
Meng-Chang Hsieh Yi-Hsin Chiu Sheng-Fu Lin Jenq-Yang Chang Chia-Ou Chang Huihua Kenny Chiang

Fluorescent biosensors have been widely used in biomedical applications. To amplify the intensity of fluorescence signals, this study developed a novel structure for an evanescent wave fiber-optic biosensor by using a Fabry-Perot resonator structure. An excitation light was coupled into the optical fiber through a laser-drilled hole on the proximal end of the resonator. After entering the reson...

2016
Alessio Gambetta Marco Cassinerio Davide Gatti Paolo Laporta Gianluca Galzerano

Direct optical Frequency Comb Spectroscopy (DFCS) is proving to be a fundamental tool in many areas of science and technology thanks to its unique performance in terms of ultra-broadband, high-speed detection and frequency accuracy, allowing for high-fidelity mapping of atomic and molecular energy structure. Here we present a novel DFCS approach based on a scanning Fabry-Pérot micro-cavity reso...

2012
MS Aziz Nathaporn Suwanpayak Muhammad Arif Jalil R Jomtarak T Saktioto Jalil Ali PP Yupapin

A new optical trapping design to transport gold nanoparticles using a PANDA ring resonator system is proposed. Intense optical fields in the form of dark solitons controlled by Gaussian pulses are used to trap and transport nanoscopic volumes of matter to the desired destination via an optical waveguide. Theoretically, the gradient and scattering forces are responsible for this trapping phenome...

2011
S Mitatha N Moongfangklang MA Jalil N Suwanpayak T Saktioto J Ali PP Yupapin

A novel design of an optical trapping tool for tangle protein (tau tangles, β-amyloid plaques) and molecular motor storage and delivery using a PANDA ring resonator is proposed. The optical vortices can be generated and controlled to form the trapping tools in the same way as the optical tweezers. In theory, the trapping force is formed by the combination between the gradient field and scatteri...

2006
Akihiko Shinya Takasumi Tanabe Eiichi Kuramochi Masaya Notomi

We have demonstrated all-optical switching operations by coupled resonator-waveguide systems in two-dimensional Si-based photonic crystals. These systems operate at extremely low power and with a very high switching speed compared with conventional devices using the same nonlinear mechanism due to the use of an ultrasmall resonator with a high quality factor. We also describe an all-optical seq...

2013
A. Benz S. Campione S. Liu I. Montaño J.F. Klem A Allerman J.R. Wendt M.B. Sinclair F. Capolino I. Brener

The interaction between cavity modes and optical transitions leads to new coupled light-matter states in which the energy is periodically exchanged between the matter states and the optical mode. Here we present experimental evidence of optical strong coupling between modes of individual sub-wavelength metamaterial nanocavities and engineered optical transitions in semiconductor heterostructure...

In this paper, a channel drop ring resonator filter based on two dimensional photonic crystal is proposed which is suitable for all optical communication systems. The multilayer of silicon rods in the center of resonant ring enables one to adjust resonant wavelength of the ring and enhance power coupling efficiency between ring and waveguide. Refractive index and radius of multilayer rods insid...

Alireza Hojabri, hamed Amin Pour,

We present a novel slanted faces of thin-disk composite Yb:YAG YAG laser which is side-pumped by four non-symmetric hollow- ducts. The pump light distribution in the disk is modeled by using Monte-Carlo ray tracing method. The temperature distribution inside the crystal is calculated by taking into account either the concentration of Yb+3 ion or the different transmission of laser output coupl...

Journal: :Nature photonics 2016
Kevin A Twedt Jie Zou Marcelo Davanco Kartik Srinivasan Jabez J McClelland Vladimir A Aksyuk

Optical microresonators have proven powerful in a wide range of applications, including cavity quantum electrodynamics1-3, biosensing4, microfludics5, and cavity optomechanics6-8. Their performance depends critically on the exact distribution of optical energy, confined and shaped by the nanoscale device geometry. Near-field optical probes9 can image this distribution, but the physical probe ne...

2001
Y. Ma S. H. Chang S. S. Chang S. T. Ho

Waveguide-coupled microdisk and microring resonators as optical filters have been of great interest due to their high wavelength selectivity and ultra-compact sizes [1 – 4]. Recently, higher-order filters based on microring resonators with improved performances have been demonstrated in compound glass and AlGaAs/GaAs material systems [3, 4]. These higher-order filters show steeper rolloffs and ...

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