Results 41 to 50 of about 204,940 (296)

Effect of heavy metals (Ni, Cu, Pb) doped ZnO on the nonlinear optical properties

Materials Research Express, 2020
In this paper, the non-linear optical properties of undoped and doped ZnO thin films were investigated. The films were doped with Ni, Pb, and Cu. an increase in the refractive index against wavelength is apparent for all films up to a certain value of ...
Abeer Salah, Ahmed A Aboud, A M Saad
doaj   +1 more source

Investigations on the Nonlinear Optical Properties of 0D, 1D, and 2D Boron Nitride Nanomaterials in the Visible Spectral Region

Nanomaterials, 2023
In recent years, boron nitride nanomaterials have attracted increasing attention due to their unique properties such as high temperature stability and high thermal conductivity.
Stefanie Dengler, Bernd Eberle
doaj   +1 more source

Optical High-Capacity Satellite Downlinks via High-Altitude Platform Relays

, 2007
Earth-observation (EO) satellite missions produce a large amount of data using high-resolution optical or radar sensors. During the last decades the amount of data has steadily increased due to improved sensor technologies with increased temporal ...
Florian Moll, Bischl, Hermann, Markus Knapek, Giggenbach, Dirk, Joachim Horwath, Horwath, Joachim, Courville, Nicolas, Knapek, Markus, Bernd Epple, Moll, Florian, Nicolas Courville, Hermann Bischl, Epple, Bernhard, Dirk Giggenbach   +13 more
core   +1 more source

Optical fiber imaging for high speed plasma motion diagnostics: applied to low voltage circuit breakers [PDF]

, 2010
An integrated portable measurement system is described for the study of high speed and high temperature unsteady plasma flows such as those found in the vicinity of high current switching arcs.
Tribulato, G., Cross, K.J., A. Balestrero, J. W. McBride, G. Tribulato, K. J. Cross, L. Ghezzi, McBride, J.W., Balestrero, A., Ghezzi, L.   +9 more
core   +1 more source

Hybrid materials for optical limiting applications

, 2006
Optical limiting materials are developed for applications in protection of optical sensors against laser aggressions. We have studied functionalised macrocycles (thiacalixarenes) and alkynylplatinum(H) derivatives for optical limiting applications. Glass
Zieba, Roman, Lindgren, Mikael, Malmstrom, Eva, Desroches, Cedric, Malmström, Eva,, Chaput, Frederic, Eliasson, Bertil,, Parola, Stephane, Eliasson, Bertil, Lopes, Cesar   +9 more
core   +1 more source

Nonlinear Dynamics of Tetraphenylporphyrin and Dithiaporphyrin and Their Diacids via Pulse Trains with ps/ns Subpulse Widths

Photonics
The nonlinear optical absorption of tetraphenylporphyrin (H2TPP) and dithiaporphyrin (DSP) and their diacids (H4TPP2+ and H2DSP2+) via pulse trains was studied. The subpulse widths of pulse trains were set as 30 ps and 5 ns according to experimental work.
Quan Miao, Erping Sun, Yan Xu
doaj   +1 more source

Studies on structural, optical nonlinearity and antibacterial activity of Piperazine (bis) p-toluenesulfonate single crystal for optical limiting and biological applications

Фізика і хімія твердого тіла, 2023
Piperazine (bis) p-toluenesulfonate (PPTSA), an organic single crystal was synthesized and grown at environmental temperature by slow evaporation process using methanol as the solvent.
K. Balakrishnan, S. Sakthy Priya, A. Lakshmanan, P. Surendran, Karthik Kannan, P. Geetha, G. Vinitha, P. Praveen Kumar, P. Rameshkumar   +8 more
doaj   +1 more source

The Golden Section as Optical Limitation

PLOS ONE, 2015
The golden section, ϕ = (1 + √5)/2 = 1.618... and its companion ϕ = 1/ϕ = ϕ -1 = 0.618..., are irrational numbers which for centuries were believed to confer aesthetic appeal. In line with the presence of golden sectioning in natural growth patterns, recent EEG recordings show an absence of coherence between brain frequencies related by the golden ...
Mark A Elliott, Joy Kelly, Jonas Friedel, Jennifer Brodsky, Paul Mulcahy   +4 more
openaire   +4 more sources

Serological Benefit of SARS‐CoV‐2 Vaccination Relative to Infection in Children With Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with acute lymphoblastic leukemia (ALL) are at risk of severe outcomes from SARS‐CoV‐2 (SCV2). In the post‐pandemic context, where most children have been infected with SCV2, there are limited data on whether vaccination remains beneficial in children with ALL.
Janna R. Shapiro, Freda Qi, Karen Colwill, Alina D. Dorogy, Ying Liu, Michelle Science, Anne‐Claude Gingras, James M. Rini, Sumit Gupta, Sarah Alexander, Shelly Bolotin, Tania H. Watts   +11 more
wiley   +1 more source

Investigation of an optical limiting mechanism in multiwalled carbon nanotubes

, 2012
[[abstract]]We report our investigation of the mechanism that is responsible for the optical limiting behavior in multiwalled carbon nanotubes. We conducted energy-dependent transmission measurements, picosecond time-resolved pump-probe experiment, and ...
Xuan Sun ;Yuenan Xiong ;Ping Chen ;Jianyi Lin ;Wei Ji ;Jin Hong Lim;Yang, S.S.;Hagan, D.J.;van Stryland, E.W.
core   +1 more source