Results 71 to 80 of about 2,226 (169)
Whispering gallery mode resonators with J-aggregates
We have studied the optical properties of a hybrid system consisting of cyanine dye J-aggregates attached to a spherical microcavity. A periodic structure of narrow peaks was observed in the photoluminescence spectrum of the J-aggregates, arising from the coupling between the emission of J-aggregates and the whispering gallery modes (WGMs) of the ...
Melnikau, D. +4 more
openaire +3 more sources
Effect of tapering diameters with microbottle resonator for formaldehyde (CH2O) liquid sensing
In this study, we demonstrate the effect of the microbottle resonator (MBR) based on whispering gallery modes (WGMs) with two different diameters of tapered microfibre and its experiment with the formaldehyde (CH2O) liquid sensor. The MBR with the bottle
Md Ashadi Md Johari +8 more
doaj +1 more source
Excitation of forced modes in the dielectric disk resonator-diffraction grating system [PDF]
In this work the strip-like diffraction grating influence on the spectrum of “whispering gallery” modes of the disk dielectric resonator was studied experimentally. The conditions of single-mode excitation in a wide frequency range had been defined.
A.I. Fisun +2 more
doaj
Dispersion engineering of microresonators is very important for applications, such as optical comb generation which desires wideband flat and small dispersion. In this paper, dispersion investigation has been carried out for whispering gallery mode (WGM)
Cheng Zhou, Jiangbing Du, Zuyuan He
doaj +1 more source
Broad spectral response photodetector based on individual tin-doped CdS nanowire
High purity and tin-doped 1D CdS micro/nano-structures were synthesized by a convenient thermal evaporation method. SEM, EDS, XRD and TEM were used to examine the morphology, composition, phase structure and crystallinity of as-prepared samples.
Weichang Zhou +5 more
doaj +1 more source
Effects of Nanocylinders on the Whispering Gallery Modes in a Microcylinder [PDF]
Optical biosensors have been studied extensively for the detection and characterization of biological entities, such as viruses, bacteria, and biomolecules. A two-dimensional (2D) microcylinder resonator ( Q ∼ 2 × 10 5 ) was designed, and the effects of a nanocylinder on the whispering gallery modes (WGMs) were examined numerically.
openaire +3 more sources
Control of mode anticrossings in whispering gallery microresonators
Optical microresonators attract strong interest because of exciting effects and applications ranging from sensing of single atoms and molecules to quantum and nonlinear optics. For all this, control and tuning of the discrete resonances are vital.
Werner, Christoph Sebastian +5 more
openaire +3 more sources
Investigation of the Mode Structures of Multiphoton Induced Ultraviolet Laser in a ZnO Microrod
Hexagonal wurtzite structural ZnO microrods were fabricated by vapor-phase transport method. Under the excitation of a pulse laser with 1200 nm wavelength, the multiphoton induced ultraviolet (UV) laser was observed in a microrod.
Guangping Zhu
doaj +1 more source
Whispering Gallery Mode Lasers [PDF]
Takahisa Harayama +2 more
openaire +1 more source

