Results 111 to 120 of about 20,871 (297)

Spectral-Domain Measurements of Birefringence and Sensing Characteristics of a Side-Hole Microstructured Fiber

Sensors, 2013
We experimentally characterized a birefringent side-hole microstructured fiber in the visible wavelength region. The spectral dependence of the group and phase modal birefringence was measured using the methods of spectral interferometry. The phase modal
Waclaw Urbańczyk, Mariusz Makara, Krzysztof Poturaj, Pawel Mergo, Jacek Olszewski, Tadeusz Martynkien, Petr Hlubina   +6 more
doaj   +1 more source

High Birefringence And Wide Nematic Range Liquid Crystal Mixtures

, 2004
Isothiocyanato tolane liquid crystals exhibit a high birefringence and relatively low viscosity. The phase transition temperatures, birefringence and visco-elastic coefficient of several high birefringence isothiocyanato tolane compounds are evaluated ...
Gauza, Sebastian, Wu, Janet R., Du, Fang, Dabrowski, Roman, Wu, Shin Tson   +4 more
core  

Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil)

The Anatomical Record, EarlyView.
Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano, Matheus P. S. Rocha, Francisco P. Lima‐Filho, Aline M. Ghilardi   +3 more
wiley   +1 more source

Snapshot Multi-Wavelength Birefringence Imaging

Sensors
A snapshot multi-wavelength birefringence imaging measurement method was proposed in this study. The RGB-LEDs at wavelengths 463 nm, 533 nm, and 629 nm were illuminated with circularly polarized light after passing through a circular polarizer.
Shuang Wang, Xie Han, Kewu Li
doaj   +1 more source

Growth dynamics, skeletochronology, and histovariability of the theropod dinosaur Berthasaura leopoldinae

The Anatomical Record, EarlyView.
Osteohistological sampling on different bones of theropod dinosaur documents discrepant age record, growth, and metabolism. This could result unprecise paleobiological inferences if samplings are based on single bones. However, multi‐bone sampling can attenuate these discrepancies, helping to infer growth dynamics and physiology of these extinct ...
Geovane Alves de Souza, Marina Bento Soares, Luiz Carlos Weinschütz, Alexander Wilhelm Armin Kellner   +3 more
wiley   +1 more source

Birefringence upper limit analysis of low birefringence fibers employed in the Faraday effect current sensors

The theoretical model of the Faraday rotation in the low birefringence optical fiber is proposed to serve as a convenient tool for the determination of the birefringence upper limit allowed to retain current sensor sensitivity.
Vukovic, N., May-Smith, T.C., Segura Sermiento, M., Loh, W.H., Zervas, M.N.   +4 more
core  

Sensitivity characteristics of high-birefringence Sagnac interferometer sensors

, 2012
The sensitivity characteristics of the sensors based on high-birefringence Sagnac interferometer are theoretically analyzed and experimentally verified.
Xinyong Dong, Peng Zu, Yongxing Jin, Li Han Chen, Chi Chiu Chan, Ziyang Liang, Wong, Wei Chang, Liang, Ziyang, Dong, Xinyong, Wei Chang Wong, Zu, Peng, Chan, Chi Chiu, Chen, Li Han, Jin, Yongxing   +13 more
core   +1 more source

Differences in predominant collagen fiber orientation between dorsal and plantar trabecular bone tracts of adult mule deer calcanei suggest strain‐mode‐specific adaptation

The Anatomical Record, EarlyView.
Polarized microscopic images of the outer bone cortex (a and b) and deeper trabecular bone (c and d) of the deer calcaneus in thin cross‐sections. The brighter gray levels reflect more oblique‐to‐transverse collagen fibers in the compression/dorsal bone (a, c) and the darker gray levels reflect more longitudinal collagen in the tension/plantar bone (b,
John G. Skedros, John T. Cronin, Chad S. Mears, Brett W. Richards   +3 more
wiley   +1 more source

FEM analysis of a highly birefringent modified slotted core circular PCF for endlessly single mode operation across E to L telecom bands

Journal of the European Optical Society-Rapid Publications
This paper describes an exceptionally high birefringent modified slotted core circular photonic crystal fiber (MSCCPCF). At the 1.55 μm telecommunication wavelength, the proposed fiber structure aims to achieve exceptional birefringence performance ...
Halder Amit, Arafat Yeasin, Ahmed Imtiage, Ahsan Muhammad, Siddiquee Zubairia, Tanshen Riyad, Anower Shamim   +6 more
doaj   +1 more source

Strain-induced improvements on linear and nonlinear optical properties of SrB4O7 crystal

AIP Advances, 2012
Although the high nonlinearity, strontium tetraborate crystal SrB4O7 is angular non-phasematched in UV SHG process due to its low birefringence. In this Letter, we revealed that its birefringence can be significantly enhanced by uniaxial strain based on ...
Zuju Ma, Kechen Wu, Rongjian Sa, Kaining Ding, Qiaohong Li   +4 more
doaj   +1 more source