Results 1 to 10 of about 863,347 (299)

Radioluminescence and photoluminescence of Th:CaF$_2$ crystals

, 2015
We study thorium-doped CaF$_2$ crystals as a possible platform for optical spectroscopy of the Th-229 nuclear isomer transition. We anticipate two major sources of background signal that might cover the nuclear spectroscopy signal: VUV-photoluminescence,
Schreitl, Matthias, Schumm, Thorsten, Stellmer, Simon   +2 more
core   +1 more source

Oblique Polarized Reflectance Spectroscopy for Depth Sensitive Measurements in the Epithelial Tissue [PDF]

, 2013
Optical spectroscopy has shown potential as a tool for precancer detection by discriminating alterations in the optical properties within epithelial tissues.
Fradkin, Leonid, Jimenez, Maria K., Lam, Sylvia, Nieman, Linda T., Poh, Catherine, Sokolov, Konstantin   +5 more
core   +1 more source

Optical imaging spectroscopy [PDF]

During the recent solar maximum the combination of imaging and spectroscopy in the visible part of the spectrum became a powerful tool for observational study of flares primarily because of the development of two-dimensional charge-coupled-device (CCD ...
Canfield, R. C.
core   +1 more source

Multi-frequency Study of the LMC Supernova Remnant (SNR) B0513-692 and New SNR Candidate J051327-6911

, 2007
We present a new multi-wavelength study of supernova remnant (SNR) B0513-692 in the Large Magellanic Cloud (LMC). The remnant also has a strong, superposed, essentially unresolved, but unrelated radio source at its north-western edge, J051324-691049 ...
A. Kawamura, Bisnovatyi-Kogan, Bock, Clarke, Davies, Dickel, Egan, Egan, Elmegreen, Feast, Fesen, Filipović, Fukui, Fukui, Gaensler, Gaensler, Gurwell, Haberl, Henize, Ho, I. S. Bojičić, Inglis, J. L. Payne, Kaler, Kesteven, Long, M. D. Filipović, Mathewson, Mathewson, Mathewson, Mathewson, Mathewson, Mills, Nelson, P. A. Jones, Q. A. Parker, Reid, Reid, Sault, Sault, Udalski, Van Der Marel, Voges, W. Reid, Weiler, Williams, Y. Fukui, Yamaguchi, Ye   +48 more
core   +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

Biomedical Probes Based on Inorganic Nanoparticles for Electrochemical and Optical Spectroscopy Applications

Sensors, 2015
Inorganic nanoparticles usually provide novel and unique physical properties as their size approaches nanometer scale dimensions. The unique physical and optical properties of nanoparticles may lead to applications in a variety of areas, including ...
Abdulhadee Yakoh, Chanika Pinyorospathum, Weena Siangproh, Orawon Chailapakul   +3 more
doaj   +1 more source

Terahertz Magneto Optical Polarization Modulation Spectroscopy

, 2012
We report the development of new terahertz techniques for rapidly measuring the complex Faraday angle in systems with broken time-reversal symmetry using the cyclotron resonance of a GaAs two-dimensional electron gas in a magnetic field as a system for ...
Aguilar, Andrea G. Markelz, Andreas V. Stier, Bruce D. McCombe, Byrne, Cerne, Chase T. Ellis, Cheng, Chiu, Crassee, Deepu K. George, Grayson, Grischkowsky, Huant, Ikebe, Jenkins, John Černe, Kim, Kono, Mittleman, Morimoto, Morimoto, Piller, Piller, Planken, Schmadel, Spielman, Sumikura, Tse, Wu, Yatsugi   +30 more
core   +1 more source

Mathematical forms of Planck’s thermal radiation law and photobiological biomass adaptations

Academia Biology
Solar photons with energies from 1.2 to 3 eV fuel Earth’s biosphere via excited-state photochemical reactions. The solar radiance spectrum is successfully modeled by Planck’s thermal radiation law, applied to a blackbody heated to ~5,800 K ...
Mariana Sendova, Isaac Moncada-Almendarez   +1 more
doaj   +1 more source

Measuring Outer Disk Warps with Optical Spectroscopy

, 2008
Warps in the outer gaseous disks of galaxies are a ubiquitous phenomenon, but it is unclear what generates them. One theory is that warps are generated internally through spontaneous bending instabilities. Other theories suggest that they result from the
Bland-Hawthorn, Joss, Christlein, Daniel
core   +1 more source

Optical Spectroscopy of Molecular Positronium

Physical Review Letters, 2012
We report optical spectroscopic measurements of molecular positronium (Ps(2)), performed via a previously unobserved L=1 excited state. Ps(2) molecules created in a porous silica film, and also in vacuum from an Al(111) crystal, were resonantly excited and then photoionized by pulsed lasers, providing conclusive evidence for the production of this ...
Cassidy, DB, Hisakado, TH, Tom, HWK, Mills, AP   +3 more
openaire   +4 more sources