Results 71 to 80 of about 57,281 (193)

Group-Birefringence-Dispersion Measurements for Polarization-Maintaining Fibers Using a Kerr Phase-Interrogator

Applied Sciences, 2020
A method which utilizes a Kerr phase-interrogator to measure the group birefringence dispersion (GBD) of a polarization-maintaining fiber (PMF) is systematically studied in this paper.
Yang Lu
doaj   +1 more source

Low loss, high contrast optical waveguides based on CMOS compatible LPCVD processing: technology and experimental results [PDF]

, 2005
A new class of integrated optical waveguide structures is presented, based on low cost CMOS compatible LPCVD processing. This technology allows for medium and high index contrast waveguides with very low channel attenuation.
Borreman, A., Heideman, R.G., Hoekman, M., Leinse, A., Melloni, A., Morichetti, F.   +5 more
core   +1 more source

Two-Layer Polarization-Maintaining Solid-Core Photonic Crystal Fiber

IEEE Photonics Journal, 2018
In this study, a two-layer polarization-maintaining solid-core photonic crystal fiber (SC-PCF) is proposed. The cladding has two large holes both in the first and second layers for high birefringence and confinement loss reduction, respectively.
Ningfang Song, Fuyu Gao, Xiaobin Xu, Zhihao Zhang   +3 more
doaj   +1 more source

Thermotropic Nematic and Smectic Order in Silica Glass Nanochannels

, 2010
Optical birefringence measurements on a rod-like liquid crystal (8OCB), imbibed in silica channels (7 nm diameter), are presented and compared to the thermotropic bulk behavior.
Andriy V. Kityk, Crawford G. P., Patrick Huber   +2 more
core   +1 more source

Using CMB data to constrain non-isotropic Planck-scale modifications to Electrodynamics

, 2011
We develop a method to constrain non-isotropic features of Cosmic Microwave Background (CMB) polarization, of a type expected to arise in some models describing quantum gravity effects on light propagation.
, Alessandro Melchiorri, E. Hivon ., G. Amelino-Camelia, G. Amelino-Camelia, G. Gubitosi, G. Polenta, Gianluca Polenta, Giovanni Amelino-Camelia, Giulia Gubitosi, K.M. Górski ., L. Maccione, Luca Pagano, Marina Migliaccio, N.F. Lepora, Paolo Natoli, Planck collaboration, S. Carlip, WMAP collaboration, WMAP collaboration   +19 more
core   +1 more source

Optical storage properties in cast films of an azopolymer

Materials Research, 2003
In this paper we discuss the properties of optically induced birefringence in DR19-MDI cast films that may be used in optical storage applications. The selection of DR19-MDI cast films was based on a comparative study of optical storage properties of ...
Ubaldo Martins das Neves, David Sotero dos Santos Junior, José Alberto Giacometti, Sergio Carlos Zílio, Lino Misoguti, Débora Terezia Balogh, Osvaldo Novais de Oliveira Junior, Cleber Renato Mendonça   +7 more
doaj   +1 more source

Highly sensitive self-calibrating birefringence measurement based on anisotropic laser feedback polarization effect

PhotoniX
Accurate measurements of dual parameters of phase retardance and retardance axis of birefringent materials are of fundamental importance to their fabrication and applications.
Shiwei Deng, Xunda Chang, Jiayu Wang, Yifan Wang, Xin Xu, Kewu Li, Yidong Tan, Guangwei Hu   +7 more
doaj   +1 more source

Author Correction: A high birefringence liquid crystal for lenses with large aperture. [PDF]

Sci Rep, 2022
Bennis N, Jankowski T, Strzezysz O, Pakuła A, Zografopoulos DC, Perkowski P, Sánchez-Pena JM, López-Higuera JM, Algorri JF.   +8 more
europepmc   +1 more source

Exploring the CPT violation and birefringence of gravitational waves with ground- and space-based gravitational-wave interferometers

, 2019
In the gravitational sector, we study the CPT violation and birefringence of gravitational waves. In presence of the CPT violation, a relative dephasing is generated between two circular polarization states of gravitational waves. This effect induces the
Wang, Sai
core   +1 more source

Seeing spin dynamics in atomic gases

, 2014
The dynamics of internal spin, electronic orbital, and nuclear motion states of atoms and molecules have preoccupied the atomic and molecular physics community for decades.
Stamper-Kurn, Dan M.
core   +1 more source