Results 11 to 20 of about 277,211 (280)

Photorefractive acoustoelectro-optic correlator [PDF]

Optics Letters, 1987
An optical correlator based on acoustoelectro-optic interaction is proposed. The device is experimentally demonstrated with a LiNbO(3) crystal in which acoustic waves are launched by a piezoelectric transducer and electric fields are established through the photorefractive effect.
H, Lee, D, Psaltis
openaire   +2 more sources

Breakthrough the physical barrier on spatial resolution in Raman distributed fiber sensing using chaotic correlation demodulation

APL Photonics, 2023
Raman distributed optical fiber temperature sensors possess the unique capability of measuring spatial environmental temperatures, which can be of great interest in several fields of application.
Jian Li, Chenyi Wang, Kangyi Cao, Bowen Fan, Xinxin Zhou, Yang Xu, Zijia Cheng, Qian Zhang, Lijun Qiao, Xiaohui Xue, Jianzhong Zhang, Mingjiang Zhang   +11 more
doaj   +1 more source

Quantum optical synthesis in 2D time–frequency space

APL Photonics, 2021
Conventional optical synthesis, the manipulation of the phase and amplitude of spectral components to produce an optical pulse in different temporal modes, is revolutionizing ultrafast optical science and metrology. These technologies rely on the Fourier
Rui-Bo Jin, Kurumi Tazawa, Naoto Asamura, Masahiro Yabuno, Shigehito Miki, Fumihiro China, Hirotaka Terai, Kaoru Minoshima, Ryosuke Shimizu   +8 more
doaj   +1 more source

Spatial-Frequency Azimuthally Stable Cartography of Biological Polycrystalline Networks

International Journal of Optics, 2013
A new azimuthally stable polarimetric technique processing microscopic images of optically anisotropic structures of biological tissues histological sections is proposed.
V. A. Ushenko, N. D. Pavlyukovich, L. Trifonyuk   +2 more
doaj   +1 more source

Label-free correlation adaptive optics using even-symmetrical thermal light [PDF]

APL Photonics
In this work, we present a quantum-inspired, guide-star-free wavefront correction technique termed correlation adaptive optics (CAO) that leverages intensity correlations in even-symmetrical thermal light (ETL) to achieve label-free adaptive optical ...
Run-Jie He, Zhiyuan Ye, Hong-Chao Liu, Hai-Bo Wang, Jun Xiong   +4 more
doaj   +1 more source

Split-pulse X-ray photon correlation spectroscopy with seeded X-rays from X-ray laser to study atomic-level dynamics

Nature Communications, 2020
Here the authors study atomic scale dynamics in water by using X-ray photon correlation spectroscopy. They use a split-and-delay optics with self-seeding of X-rays to generate pulses of enough energy and controlled time delay between two X-ray pulses.
Yuya Shinohara, Taito Osaka, Ichiro Inoue, Takuya Iwashita, Wojciech Dmowski, Chae Woo Ryu, Yadu Sarathchandran, Takeshi Egami   +7 more
doaj   +1 more source

Structural-functional correlation using adaptive optics, visual fields, optical coherence tomography and multifocal electroretinogram in a case of torpedo maculopathy

Indian Journal of Ophthalmology, 2019
We present a case of a 37-year-old gentleman with a rare diagnosis of Torpedo maculopathy (TM). We describe the multimodal imaging features of torpedo maculopathy using adaptive optics, visual fields, OCT and multifocal ERG, and understand the clinical ...
Ramesh Venkatesh, Naresh K Yadav, Shivani Sinha, Ruchir Mehta, Mukunda C Akkali   +4 more
doaj   +1 more source

Correlation optics in progress: introduction to the feature issue [PDF]

, 2014
This feature issue of Applied Optics contains a series of selected papers reflecting recent progress of correlation optics and showing, in part, the trend from micro-optics to nano ...
Angelsky, Oleg V., Desyatnikov, Anton S., Gbur, Gregory J., Hanson, Steen Grüner, Miyamoto, Yoko, Szoplik, Tomasz   +5 more
core   +2 more sources

Exploring the relationship between students’ conceptual understanding and model thinking in quantum optics

Frontiers in Quantum Science and Technology, 2023
Learning quantum physics is essential for understanding the physical world. However, learning about quantum phenomena and principles poses a challenge as many of the phenomena that are observed at the quantum level cannot be directly observed or ...
Malte Ubben, Philipp Bitzenbauer
doaj   +1 more source

Core versus Surface Sensors for Reinforced Concrete Structures: A Comparison of Fiber-Optic Strain Sensing to Conventional Instrumentation

Sensors, 2023
High-resolution distributed reinforcement strain measurements can provide invaluable information for developing and evaluating numerical and analytical models of reinforced concrete structures.
Ryan Hoult, Alex Bertholet, João Pacheco de Almeida   +2 more
doaj   +1 more source