Results 101 to 110 of about 36,426 (285)

Pancake Lenses through Curved Lamination for Compact Virtual Reality

Advanced Intelligent Systems, EarlyView.
This article presents an ultrathin VR optical system based on a 1.35 in. microdisplay, leveraging curved lamination technology. Compared to mainstream solutions, the proposed design demonstrates superior compactness (volume compression by 12%) and enhanced optical performance.
Jiaping Sun, Dewen Cheng, Cheng Chi, Yuefan Shan, Da Wang, Chao Ping Chen   +5 more
wiley   +1 more source

Stress Direction Measurement Based on Polarization State in Optical Fibers Using the Quaternion Method

IEEE Photonics Journal, 2017
The state of polarization (SOP) in a polarization-maintaining fiber subjected to external stress is studied using the quaternion method. The stress principal axis on the Poincare sphere is independent of intrinsic birefringence, but has a linear ...
Zejia Huang, Chongqing Wu, Zhi Wang
doaj   +1 more source

Towards Advanced Intelligent and Perceptive Soft Grippers

Advanced Intelligent Systems, EarlyView.
Implementing soft yet strong and intelligent soft grippers request innovative and creative solutions in designing soft bodies and seamlessly integrating actuated systems with hierarchical sensing. This review systematically analyses soft grippers with a deep understanding of core components, from fundamental design principles to actuation and sensing ...
Haneul Kim, Hayeon Shin, Seik Park, Changbeom Shim, Seonggun Joe   +4 more
wiley   +1 more source

Evaluating the Impact of Cellulose Nanocrystals on the Performance of Polycarbonate Thin‐Film Nanocomposite Membranes for Treating Oily Wastewater

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT A new type of thin‐film nanocomposite (TFN) membrane was synthesized by incorporating cellulose nanocrystals (CNCs) into a polyvinyl alcohol (PVA) top layer on a polycarbonate (PC) substrate via dip‐coating. The synthesized TFC and TFN membranes (PC/PVA TFC and PC/PVA‐CNC TFN membranes) were evaluated using contact angle measurement, field ...
Habib Etemadi, Naser Ghasemian, Homayun Khezraqa, Solmaz Tozihi, Seyed Mehdi Sajjadi, Omid Ahmadi   +5 more
wiley   +1 more source

Optical Sensor System for 3D Jones Matrix Reconstruction of Optical Anisotropy Maps of Self-Assembled Polycrystalline Soft Matter Films

Sensors
Our work uses a polarization matrix formalism to analyze and algorithmically represent optical anisotropy by open dehydration of blood plasma films. Analytical relations for Jones matrix reconstruction of optical birefringence maps of protein crystal ...
Waldemar Wójcik, Zhengbing Hu, Yuriy Ushenko, Andrzej Smolarz, Iryna Soltys, Oleksander Dubolazov, Oleksander Ushenko, Olexandra Litvinenko, Ivan Mikirin, Ivan Gordey, Oleksandr Pavlyukovich, Sergii Pavlov, Natalia Pavlyukovich, Saltanat Amirgaliyeva, Aliya Kalizhanova, Zhalau Aitkulov   +15 more
doaj   +1 more source

Suspension of the fiber mode-cleaner launcher and measurement of the high extinction-ratio (10^{-9}) ellipsometer for the Q & A experiment

, 2006
The Q & A experiment, first proposed and started in 1994, provides a feasible way of exploring the quantum vacuum through the detection of vacuum birefringence effect generated by QED loop diagram and the detection of the polarization rotation effect ...
and Wei-Tou Ni, Anselm A A, Cantatore G, Chen S-J, Chen S-J, Chen S-J, Chen S-J, Euler E, Hsien-Hao Mei, Nezrick F, Ni W-T, Ni W-T, Ni W-T, Ni W-T, Pedrotti F, Pengo R, Rizzo C, Sheng-Jui Chen, Takubo Y, Wu J-S, Zavattini E   +20 more
core   +1 more source

Interconversion of Optical to Terahertz Pulses in Nonlinear Beta Barium Borate Crystal

Advanced Physics Research, EarlyView.
ABSTRACT Low‐temperature β‐phase barium borate (β‐BBO) is an important nonlinear crystal, widely utilized for optical second‐harmonic (SH) generation. Recent re‐measurements of refractive indices in the terahertz (THz) range reveal that β‐BBO is a positive uniaxial crystal.
Yingyu Guo, Boyuan Chen, Zhangshun Li, Zhiqiang Lan, Huiping Zhang, Lin Xi, Zuanming Jin, Yan Peng, Yiming Zhu   +8 more
wiley   +1 more source

Low-Coherence Interferometry for Measurement of Properties of Optical Components

Communications, 2010
We present a modification of the interferometric method for the measurement of refractive index or thickness of optical devices using an easily aligned, almost all-fiber Michelson interferometer.
Daniel Kacik, Norbert Tarjanyi, Ivan Turek   +2 more
doaj   +1 more source

A continuous isotropic-nematic liquid crystalline transition of F-actin solutions

, 2002
The phase transition from the isotropic (I) to nematic (N) liquid crystalline suspension of F-actin of average length $3~\mu$m or above was studied by local measurements of optical birefringence and protein concentration. Both parameters were detected to
A. Kerst, A. Suzuki, C. Coppin, F. Gittes, G.L. Vroege, J. Buitenhuis, J. Kas, J.X. Tang, J.X. Tang, Jay X. Tang, Jorge Viamontes, L. Onsager, P.E. Lammert, P.E. Lammert, R. Furukawa, R. Oldenbourg, R.E. Buxbaum, S. Chandrasekhar, S.D. Lee, T. Sato   +19 more
core   +1 more source

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