Browsing by Keywords "Whispering gallery modes"
Now showing items 1-12 of 12
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Anisotropic stimulated emission from aligned CdSe/CdS dot-in-rods
(IEEE, 2014-10)Anisotropic optical properties of CdSe/CdS dot-in-rods loaded in a capillary tube are demonstrated, suggesting nanorods' alignment with a microfluidic approach. Polarized emissions from photoluminescence and whispering ... -
Experimental conditions for the excitation of thin disk whispering-gallery-mode resonators
(Electromagnetics Academy, 2013)Measurements of mm-wave excitation spectra of highorder whispering gallery modes in free-space cylindrical disk resonators as functions of resonator thickness have been made. Resonators in the form of tight stacks of thin ... -
Far-infrared elastic scattering proposal for the Avogadro Project's silicon spheres
(Elsevier, 2018)Avogadro constant determines the number of particles in one mole of a substance, thus relating the molar mass of the substance to the mass of this substance. Avogadro constant is related to Système Internationale base units ... -
Laser action studies of π-conjugated polymer microcavities
(IEEE, 2008)Unidirectional laser emission was observed from φ-conjugated polymer microcavities with spiral geometry, and from microdisks containing line defects. For both type of cavities directionality contrast of the laser emission ... -
Light-controlled microwave whispering-gallery-mode quasi-optical resonators at 50W LED array illumination
(American Institute of Physics Inc., 2015)We present experimental observations of light-controlled resonance effects in microwave whispering-gallery-mode quasi-optical dielectric-semiconductor disk resonators in the frequency band of 5 GHz to 20 GHz arising due ... -
Microcavity lasers on polymer materials: Boundary integral equation modeling and experiments
(IEEE, 2015-04)We consider the modeling and experiments with polymer dye-doped lasers shaped as thin flat cavities, allowing one to consider them as two-dimensional (2-D) active cavities. We focus our modeling on the H-polarized ... -
Multicolor lasing prints
(American Institute of Physics Inc., 2015)This work demonstrates mass production of printable multi-color lasing microarrays based on uniform hemispherical microcavities on a distributed Bragg reflector using inkjet technique. By embedding two different organic ... -
Observation of polarized gain from aligned colloidal nanorods
(Royal Society of Chemistry, 2015)In recent years, colloidal semiconductor nanorods have attracted great interest for polarized spontaneous emission. However, their polarized gain has not been possible to achieve so far. In this work we show the highly ... -
Tapered nanoscale chalcogenide fibers directly drawn from bulk glasses as optical couplers for high-index resonators
(OSA - The Optical Society, 2017)We report production of air-clad tapered chalcogenide fibers by directly drawing bulk glasses between cleaved tips of tapered silica fibers. Exploiting these tapered fibers with nanoscale waists as evanescent optical ... -
Ultrasensitive label-free microcavity biosensors with high selectivity
(IEEE, 2011)High quality factor whispering gallery mode microresonators have been recently shown to exhibit detection sensitivity of single molecule; however, the selectivity of these sensors among different types of analytes remains ... -
Unraveling the ultralow threshold stimulated emission from CdZnS/ZnS quantum dot and enabling high ‐ Q microlasers
(Wiley-VCH Verlag, 2015)The newly engineered ternary CdZnS/ZnS colloidal quantum dots (CQDs) are found to exhibit remarkably high photoluminescence quantum yield and excellent optical gain properties. However, the underlying mechanisms, which ... -
Wavelength tuning of the spirally drawn whispering gallery mode microfiber lasers and the perspectives for sensing applications
(OSA - The Optical Society, 2017)Facile and cost-efficient microcavities, as well as the tuning of the optical modes, especially for the application of top-grade optical devices, have been emerging as attractive research fields. In this work, controllable ...
