Results 111 to 120 of about 45,769 (300)

Matter wave interference using two-level atoms and resonant optical fields [PDF]

, 1998
A theory of matter wave interference is developed in which resonant optical fields interact with two-level atoms. When recoil effects are included, spatial modulation of the atomic density can occur for times that are greater than or comparable with the ...
Berman, P. R., Dubetsky, B.
core   +2 more sources

Terahertz Chiral Metamaterials Enabling Broadband Polarization Conversion Using Polarization Guiding Effect

Advanced Materials Technologies, EarlyView.
A broadband terahertz polarization rotator consisting of twistingly stacked silicon–air metagratings is designed based on the polarization guiding effect and experimentally shown to achieve 90° linear polarization rotation for both TE and TM incidences.
Yun‐Seok Choi, Tae Gwan Park, Antoinette J. Taylor, Hou‐Tong Chen, Abul K. Azad   +4 more
wiley   +1 more source

Arc-Induced Long Period Fiber Gratings [PDF]

Journal of Sensors, 2016
Long period fiber gratings produced by the electric arc technique have found an increasing interest by the scientific community due to their ease to fabricate, virtually enabling the inscription in any kind of fiber, low cost, and flexibility. In 2005 we have presented the first review on this subject.
openaire   +2 more sources

Spatially Arrayed Long Period Gratings in Multicore Fiber by Programmable Electrical Arc Discharge

IEEE Photonics Journal, 2017
Based on electrical arc discharges mechanisms, we inscribed spatially arrayed long period gratings (LPGs) into a heterogeneous seven-core fiber. The LPG fabrication platform was built upon the commercial fiber fusion splicer with a self-developed real ...
Ruoxu Wang, Ming Tang, Songnian Fu, Zhenhua Feng, Weijun Tong, Deming Liu   +5 more
doaj   +1 more source

Theory of decoherence in a matter wave Talbot-Lau interferometer

, 2004
We present a theoretical framework to describe the effects of decoherence on matter waves in Talbot-Lau interferometry. Using a Wigner description of the stationary beam the loss of interference contrast can be calculated in closed form.
A. Sommerfeld, B. Dubetsky, B. Vacchini, E. A. Mason, E. Joos, G. C. Maitland, G. Vidali, H. F. Talbot, H. Friedrich, H. Halban, Jr., H. Rauch, J. Clauser, J. M. Wylie, John E. Sipe, K. Patorski, Klaus Hornberger, M. Born, Markus Arndt, P. Facchi, R. Bonifacio, S. Martellucci   +20 more
core   +1 more source

Advances in Safe, Flexible, and Stretchable Batteries for Wearable Applications

Advanced Materials Technologies, EarlyView.
Unlike previous reviews centered on component‐based deformability, this work highlights safety‐driven design strategies for flexible and stretchable batteries. By integrating material‐level engineering, geometry‐controlled structures, biocompatibility, and self‐protection mechanisms, it establishes a unified framework that connects mechanical ...
Hyewon Kang, Garan Byun, Seunghyeb Ban, Yunuo Huang, Woon‐Hong Yeo   +4 more
wiley   +1 more source

UV Inscription and Pressure Induced Long-Period Gratings through 3D Printed Amplitude Masks. [PDF]

Sensors (Basel), 2021
Oliveira R, Sousa LM, Rocha AM, Nogueira R, Bilro L.   +4 more
europepmc   +1 more source

Fiber Bragg Gratings with Micro‐Engineered Temperature Coefficients

Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
Fiber Bragg gratings (FBGs) are intrinsically responsive to temperature and strain simultaneously. In this research, low‐loss FBGs with micro‐engineered temperature coefficients are fabricated, utilizing refractive index liquid‐filled microchannels in the cladding.
Zipei Song, Mohan Wang, Frank P. Payne, Patrick S. Salter, Tongyu Liu, Steve J. Elston, Martin J. Booth, Stephen M. Morris, Julian A. J. Fells   +8 more
wiley   +1 more source

Sensing Characteristics of Tilted Long Period Fiber Gratings Inscribed by Infrared Femtosecond Laser

Sensors, 2018
We propose a novel tilted long period fiber grating (TLPFG) design, inscribed using a line-by-line inscription technique and an infrared femtosecond (Fs) laser.
Jian Tang, Cailing Fu, Zhiyong Bai, Changrui Liao, Yiping Wang   +4 more
doaj   +1 more source

Multiperiod-grating surface-emitting lasers [PDF]

, 1992
Surface-emitting distributed feedback (DFB) lasers are disclosed with hybrid gratings. A first-order grating is provided at one or both ends of the active region of the laser for retroreflection of light back into the active region, and a second-order or
Lang, Robert J.
core   +1 more source