Results 21 to 30 of about 409,231 (284)

Terahertz Spectroscopy of Thermal Radiation from AlGaN/GaN Heterostructure on Sapphire at Low Temperatures

Applied Sciences, 2020
Terahertz spectroscopy of thermal radiation from electrically pumped AlGaN/GaN structures on sapphire substrate was investigated in this work. Comparison of experimental THz spectroscopy results to theoretical spectra calculations shows that thermal ...
Ignas Grigelionis, Irmantas Kašalynas
doaj   +1 more source

Absorbance response of graphene oxide coated on tapered multimode optical fiber towards liquid ethanol [PDF]

Journal of the European Optical Society-Rapid Publications, 2015
The investigation of graphene oxide (GO) for sensing applications is attractive due to its nanoscale structure and its sensing properties has yet to be fully understood. In this paper, optical response of GO coated optical fiber sensor towards ethanol is
Girei S. H., Shabaneh A. A., Lim H. M., Huang N. M., Mahdi M. A., Yaacob M. H.   +5 more
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Non equilibrium anisotropic excitons in atomically thin ReS$_2$

, 2018
We present a systematic investigation of the electronic properties of bulk and few layer ReS$_2$ van der Waals crystals using low temperature optical spectroscopy.
Baranowski, M., Heine, T., Kis, A., Klopotowski, L., Kuc, A., Ma, Y., Maude, D. K., Ovchinnikov, D., Plochocka, P., Suchocki, A., Surrente, A., Urban, J. M., Wlodarczyk, D.   +12 more
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The Study of the Optical Properties of C60 Fullerene in Different Organic Solvents

Open Chemistry, 2019
C60 fullerene exhibits unique optical properties that have high potential for wide photo-optical applications. To analyze the optical properties of C60, its excitation and emission properties were studied using UV-Vis absorption and photoluminescence (PL)
Saraswati Teguh Endah, Setiawan Umam Hasan, Ihsan Mohammad Rifki, Isnaeni Isnaeni, Herbani Yuliati   +4 more
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Disentangling the Environment of the FU Orionis Candidate HBC 722 with Herschel [PDF]

, 2011
We analyze the submillimeter emission surrounding the new FU Orionis-type object, HBC 722. We present the first epoch of observations of the active environs of HBC 722, with imaging and spectroscopy from PACS, SPIRE, and HIFI aboard the Herschel Space ...
Andrews, Green, Guieu, Laugalys, Leoni, Lorenzetti, Miller, Munari, Ott, Quanz, Quanz, Rebull, Reipurth, Sandell, Semkov, Straizys, Straizys, Wu, Zhu, Zhu   +19 more
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Influence of tartaric acid concentration on structural and optical properties of CuSe nanoparticles synthesized via microwave assisted method

Results in Physics, 2020
The influence of chelating agent on structural and optical properties of copper selenide nanoparticle has been the subject of ongoing debate in copper selenide based material research.
Ibrahim Garba Shitu, Zainal Abidin Talib, Josephine Liew Ying Chi, Mohd Mustapha Awang Kechick, Hussein Baqiah   +4 more
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Plasma Process Control With Optical Emission Spectroscopy [PDF]

Sensors in Electronic Packaging, 1995
Abstract Plasma processes for etching and desmear of electronic components and printed wiring boards (PWB) are difficult to predict and control. Non-uniformity of most plasma processes and sensitivity to environmental changes make it difficult to maintain process stability from day to day.
openaire   +1 more source

Coherent Interaction of Light and Single Molecules in a Dielectric Nanoguide [PDF]

, 2014
We present a new scheme for performing optical spectroscopy on single molecules. A glass capillary with a diameter of 600 nm filled with an organic crystal tightly guides the excitation light and provides a maximum spontaneous emission coupling factor ($\
Faez, Sanli, Götzinger, Stephan, Haakh, Harald R., Sandoghdar, Vahid, Türschmann, Pierre   +4 more
core   +3 more sources

Surface Effects on Anisotropic Photoluminescence in One‐Dimensional Organic Metal Halide Hybrids

Small Structures, 2023
1D organic metal halide hybrids (OMHHs) exhibit strongly anisotropic optical properties, highly efficient light emission, and large Stokes shift, holding promise for novel photodetection and lighting applications.
Luke M. McClintock, Long Yuan, Ziyi Song, Michael T. Pettes, Dmitry Yarotski, Rijan Karkee, David A. Strubbe, Liang Z. Tan, Azza Ben-Akacha, Biwu Ma, Yunshu Shi, Valentin Taufour, Dong Yu   +12 more
doaj   +1 more source

Multiwavelength Observations of GX 339-4 in 1996. III. Keck Spectroscopy

, 1998
As part of our multiwavelength campaign of observations of GX 339-4 in 1996 we present our Keck spectroscopy performed on May 12 UT. At this time, neither the ASM on the RXTE nor BATSE on the CGRO detected the source.
A. V. Filippenko, Bottcher M., Callanan P. J., Canalizo G., Casares J., Corbet R. H. D., D. C. Leonard, Fender R. P., I. A. Smith, Motch C., Motch C., Motch C., Penston M. V., Shahbaz T.   +13 more
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