Results 31 to 40 of about 2,529,892 (293)

Optical anisotropy in GaSe

Crystal Research and Technology, 2005
AbstractOptical anisotropy of the layer semiconductor GaSe has been studied by photoluminescence (PL) and Fourier Transform Infrared Spectroscopy (FTIR). The PL spectra are dominated by two closely positioned emission bands resulting from the free exciton and the bound exciton connected direct band edge of GaSe.
Seyhan, A., Akmo?lu, B.G., Aslan, B., Turan, R., Karabulut, Orhan.   +4 more
openaire   +4 more sources

Microelectromechanical Maltese-cross metamaterial with tunable terahertz anisotropy

, 2012
Dichroic polarizers and waveplates exploiting anisotropic materials have vast applications in displays and numerous optical components, such as filters, beamsplitters and isolators. Artificial anisotropic media were recently suggested for the realization
Zhu, W.M., Zhang, X.H., Bourouina, T., Kwong, D.L., Tsai, D.P., Liu, A.Q., Lo, G.Q., Zheludev, N.I., Teng, J.H.   +8 more
core   +1 more source

In Vitro Assessment of Optical Properties of Blood by Applying the Extended Huygens-Fresnel Principle to Time-Domain Optical Coherence Tomography Signal at 1300 nm

International Journal of Biomedical Imaging, 2008
A direct method for the measurement of the optical attenuation coefficient and the scattering anisotropy parameter based on applying the extended Huygens-Fresnel principle to optical coherence tomography images of blood is demonstrated.
Dan P. Popescu, Michael G. Sowa
doaj   +1 more source

Metallic Ca Aggregates Formed Along Ion Tracks and Optical Anisotropy in CaF₂ Crystals Irradiated with Swift Heavy Ions

Quantum Beam Science
It is known that swift heavy ion (SHI) irradiation induces the shape elongation of metal nanoparticles (NPs) embedded in transparent insulators, which results in anisotropic optical absorption.
Hiroshi Amekura, Norito Ishikawa, Nariaki Okubo, Feng Chen, Kazumasa Narumi, Atsuya Chiba, Yoshimi Hirano, Keisuke Yamada, Shunya Yamamoto, Yuichi Saitoh   +9 more
doaj   +1 more source

Broadband Backhaul Communication for Stratospheric Platforms: The Stratospheric Optical Payload Experiment (STROPEX) [PDF]

, 2006
A high bitrate optical downlink was performed by the stratospheric optical payload experiment (STROPEX), a part of the EU CAPANINA project. The STROPEX objectives were to design and build the necessary hardware to demonstrate an optical backhaul downlink
Knapek, Markus, Markus Knapek, Martin Brechtelsbauer, Joachim Horwath, Horwath, Joachim, Wilkerson, Brandon, Brandon Wilkerson, Brechtelsbauer, Martin, Bernhard Epple, Epple, Bernhard   +9 more
core   +1 more source

Surface-induced optical anisotropy of inhomogeneous media

, 2013
We demonstrate that the presence of interfaces induces anisotropy in the optical properties of thin inhomogeneous layers. Several mechanisms are discussed that can control the properties of this surface-induced anisotropy.
Haefner, David, Kajorndejnukul, Veerachart, Agarwal, Girish, Dogariu, Aristide, Sukhov, Sergey   +4 more
core   +2 more sources

Results of the Optical Downlink Experiment KIODO from OICETS Satellite to Optical Ground Station Oberpfaffenhofen (OGS-OP) [PDF]

, 2007
Optical LEO downlinks from the Japanese OICETS to the optical ground station built by the German Aerospace Center (DLR) near Munich have been performed. This was the first optical LEO downlink on European grounds.
Perlot, Nicolas, Giggenbach, Dirk, Takayama, Yoshihisa, Horwath, Joachim, N. Perlot, Brechtelsbauer, Martin, Y. Takayama, Knapek, Markus, D. Giggenbach, Jono, Takashi, J. Horwath, M. Brechtelsbauer, T. Jono, M. Knapek   +13 more
core   +1 more source

Using fluorescence fluctuation spectroscopy to quantify molecular dynamics within cells

FEBS Open Bio, EarlyView.
Microscopy techniques like fluorescence correlation spectroscopy (FCS) and number and brightness analysis (N&B) allow to quantify concentrations, diffusion rates, and oligomerization of fluorescently labeled molecules in the living cell. In this protocol the principles of how to set up these types of experiments are described including calibration ...
Mark A. Hink
wiley   +1 more source

Optical anisotropy due to perpendicular azimuth serial bideposition [PDF]

, 2017
© 2017 SPIE. Angled columnar structures produced by oblique angle deposition possess useful optical polarization effects. It is well known that this is due to structural anisotropy but the relative contributions of factors affecting this anisotropy are ...
Arnold, MD, Gentle, AR, Tai, MC, Smith, GB, Matthew D. Arnold, Angus R. Gentle, Matthew Tai, Geoffrey B. Smith   +7 more
core   +1 more source

Wavelength dependence of linear birefringence and linear dichroism of Bi2− x Pb x Sr2CaCu2O8+ δ single crystals

Scientific Reports
Copper oxide high-temperature superconductors, such as Bi2Sr2CaCu2O8+ δ (Bi2212), have garnered extensive research interest due to their high critical temperatures (T c) surpassing the Bardeen–Cooper–Schrieffer (BCS) limit. The two-dimensional CuO₂ plane
Keigo Tokita, Kenta Nakagawa, Kun Zhang, Komei Okano, Masataka Matsumoto, Takuya Nakanishi, Masaki Fujita, Toru Asahi   +7 more
doaj   +1 more source