Results 71 to 80 of about 622,419 (187)

Preparation of spin squeezed atomic states by optical phase shift measurement

, 2002
In this paper we present a state vector analysis of the generation of atomic spin squeezing by measurement of an optical phase shift. The frequency resolution is improved when a spin squeezed sample is used for spectroscopy in place of an uncorrelated ...
A. André, A. Kuzmich, A. Kuzmich, A. Kuzmich, A. Sørensen, B. Julsgaard, D.J. Wineland, I. Bouchoule, Isabelle Bouchoule, K. Mølmer, Klaus Mølmer, Lu-Ming Duan   +11 more
core   +2 more sources

Designing of PVA/Rose Bengal long-pass optical window applications

Results in Physics, 2017
Poly(vinyl alcohol) (PVA)/Rose Bengal (RB) composite films were prepared by casting technique form aqueous solutions doped with different dye concentrations.
S.M. El-Bashir, I.S. Yahia, M.A. Binhussain, M.S. AlSalhi   +3 more
doaj   +1 more source

Adaptive Aperture Defocused Digital Speckle Photography

, 2005
Speckle photography can be used to monitor deformations of solid surfaces. The measuring characteristics, such as range or lateral resolution depend heavily on the optical recording and illumination set-up.
Diazdelacruz, Jose M.
core   +1 more source

Nonlinear self-flipping of polarization states in asymmetric waveguides

, 2012
Waveguides of subwavelength dimensions with asymmetric geometries, such as rib waveguides, can display nonlinear polarization effects in which the nonlinear phase difference dominates the linear contribution, provided the birefringence is sufficiently ...
Afshar, V. Shahraam, Lohe, M. A., Monro, Tanya M., Zhang, Wen Qi   +3 more
core   +1 more source

Influence of generalized focusing of few-cycle Gaussian pulses in attosecond pulse generation

, 2013
In contrast to the case of quasi-monochromatic waves, a focused optical pulse in the few-cycle limit may exhibit two independent curved wavefronts, associated with phase and group retardations, respectively.
Altucci, Carlo, Karimi, Ebrahim, Marrucci, Lorenzo, Tosa, Valer, Velotta, Raffaele   +4 more
core   +1 more source

The Advantages and Disadvantages of Using Structured High-Order but Single Laguerre–Gauss LG_p0 Laser Beams

Photonics
Most laser applications are based on the focusing of a Gaussian laser beam (GLB). When the latter is subject to a phase aberration such as the optical Kerr effect (OKE) or spherical aberration (SA), it is recognised that the focusing performance of the ...
Kamel Aït-Ameur
doaj   +1 more source

Signatures of polaronic charge ordering in optical and dc conductivity using dynamical mean field theory

, 2008
We apply dynamical mean field theory to study a prototypical model that describes charge ordering in the presence of both electron-lattice interactions and intersite electrostatic repulsion between electrons.
G. Grüner, M. Dressel, S. Ciuchi, S. Fratini   +3 more
core   +3 more sources

A Cu(I)-Based MOF with Nonlinear Optical Properties and a Favorable Optical Limit Threshold

Nanomaterials
The exploitation of high-performance third-order nonlinear optical (NLO) materials that have a favorable optical limit (OL) threshold is essential due to a rise in the application of ultra-intense lasers. In this study, a Cu-based MOF (denoted as Cu-bpy)
Jing Cui, Zhaohui Yang, Yu Zhang, Zhaoxuan Fan, Jianquan Wang, Xiaoyun Qin, Lijun Gao, Haoran Yang, Shuangliang Liu, Liming Zhou, Shaoming Fang, Zhen Zhang   +11 more
doaj   +1 more source

Optical monitoring of gamma-ray source fields [PDF]

The three gamma-ray burst source fields GBS1028+46, GBS1205+24, and GBS2252-03 have been monitored for transient optical emission for a combined total of 52 hours. No optical events were seen.
Frecer, J. E., Gehrels, N., Gehrels, T., Mcmillan, R. S., Scotti, J. V.   +4 more
core   +1 more source

Optical Limiting Properties of DNA Biopolymer Doped with Natural Dyes. [PDF]

Polymers (Basel), 2023
Gheorghe P, Petris A, Anton AM.
europepmc   +1 more source