Results 101 to 110 of about 9,843 (297)

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

open access: yesIEEE 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

Birefringence characterization of injection molded microplates

open access: yes, 2015
Birefringence affects the quality of image analysis in injection molded micro-plates. Depending upon their manufacturing / production processes and the type of material, different plates exhibit varying amounts of birefringence.
Asundi, Anand   +3 more
core   +1 more source

Pancake Lenses through Curved Lamination for Compact Virtual Reality

open access: yesAdvanced 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   +5 more
wiley   +1 more source

Towards Advanced Intelligent and Perceptive Soft Grippers

open access: yesAdvanced 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   +4 more
wiley   +1 more source

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

open access: yesSensors
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   +15 more
doaj   +1 more source

Measurement of group birefringence and dispersion of polarisation maintaining erbium-doped silica fibre

open access: yes, 1992
The group birefringence and chromatic dispersion of a polarisation maintaining bow-tie erbium-doped silica fibre have been measured in the wavelength range 1.2-1.68µm by an interferometric measurement technique without any polarisers.
Richardson, D.J.   +3 more
core   +1 more source

Thermally Stable Organic Synaptic Transistors Using a High‐Tg Polymer Electret

open access: yesAdvanced Intelligent Systems, EarlyView.
A high–glass‐transition‐temperature cyclic olefin copolymer (COC) electret enables thermally stable organic synaptic transistors for neuromorphic operation in harsh environments. UV–ozone treatment increases the trap density in COC, providing robust multilevel conductance and key synaptic functions (excitatory postsynaptic current/ inhibitory ...
Hoyoung Cho   +9 more
wiley   +1 more source

Low-Coherence Interferometry for Measurement of Properties of Optical Components

open access: yesCommunications, 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   +2 more
doaj   +1 more source

Magneto-vortical birefringence in a ferrofluid

open access: yes, 2002
A dilute magnetic fluid (MF) submitted to a static magnetic field exhibits an optical birefringence. In a vortical flow the optical axis of the MF is modified.
J.-C. Bacri   +3 more
core   +1 more source

DISTRIBUTED MEASUREMENT OF BIREFRINGENCE IN POLARIZATION-MANTAINING FIBERS

open access: yes, 2017
In this paper a technique to perform a distributed measurement of the birefringence of an optical fiber is proposed. The method relies on the correlation of the spectra of two orthogonal polarization states, which reveals a side peak at a frequency shift
M. Santagiustina   +3 more
core  

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