Results 51 to 60 of about 13,853 (310)

High quality factor metasurfaces for two-dimensional wavefront manipulation

Nature Communications, 2023
The strong interaction of light with micro- and nanostructures plays a critical role in optical sensing, nonlinear optics, active optical devices, and quantum optics.
Claudio U. Hail, Morgan Foley, Ruzan Sokhoyan, Lior Michaeli, Harry A. Atwater   +4 more
doaj   +1 more source

Isotropically resolved label-free tomographic imaging based on tomographic moulds for optical trapping

Light: Science & Applications, 2021
A general method for the in-situ isotropic microtomography of freestanding specimens, exploiting complex wavefront shaping and optical tweezers.
Moosung Lee, Kyoohyun Kim, Jeonghun Oh, YongKeun Park   +3 more
doaj   +1 more source

Efficient Switchable Common Path Interferometer for Transmission Matrix Characterization of Scattering Medium

IEEE Photonics Journal, 2022
Transmission matrix can be used as an elegant tool to represent the light transmission characteristics of a scattering medium. In this paper, we propose a novel common path interferometer technique to measure the transmission matrix utilizing the ...
Han Gao, Haifeng Hu, Qiwen Zhan, Yanxin Zhang, Weigang Zhang   +4 more
doaj   +1 more source

Implementation of a digital optical phase conjugation system and its application to study the robustness of turbidity suppression by phase conjugation [PDF]

, 2010
In this work, we report a novel high capacity (number of degrees of freedom) open loop adaptive optics method, termed digital optical phase conjugation (DOPC), which provides a robust optoelectronic optical phase conjugation (OPC) solution.
Cui, Meng, Yang, Changhuei
core   +2 more sources

Improving Depth Sensitive Fluorescence Spectroscopy With Wavefront Shaping by Spectral and Spatial Filtering

IEEE Access, 2019
Depth sensitive optical spectroscopy preferentially detects optical spectra from different depths in layered samples, which plays a crucial role in many applications such as the optical diagnosis of epithelial precancer and cancer.
Chao-Mao Hsieh, Manish Verma, Quan Liu
doaj   +1 more source

A comparative study of optimization algorithms for wavefront shaping [PDF]

Journal of Innovative Optical Health Sciences, 2019
By manipulating the phase map of a wavefront of light using a spatial light modulator, the scattered light can be sharply focused on a specific target.
Zahra Fayyaz, Nafiseh Mohammadian, M. Reza Rahimi Tabar, Rayyan Manwar, Kamran Avanaki   +4 more
doaj   +1 more source

Spectral control of broadband light through random media by wavefront shaping

, 2012
A random medium can serve as a controllable arbitrary spectral filter with spectral resolution determined by the inverse of the interaction time of the light in the medium.
Aulbach, Conkey, Eran Small, Fink, Freund, Freund, Katz, Katz, Kohlgraf-Owens, Lemoult, Lerosey, McCabe, Mosk, Ori Katz, Popoff, Popoff, Small, Svensson, van Beijnum, Vellekoop, Vellekoop, Yaqoob, Yaron Silberberg, Yefeng Guan   +23 more
core   +1 more source

Wavefront shaping of a Bessel light field enhances light sheet microscopy with scattered light [PDF]

, 2014
The project was supported by the UK Engineering and Physical Sciences Research Council, RS MacDonald Charitable Trust, SULSA, and the St. Andrews 600th anniversary BRAINS appeal. K. D.
Dholakia, K., Gunn-Moore, F. J., Mitchell, C., Nylk, J., Vettenburg, T.   +4 more
core   +2 more sources

Adaptive wavefront shaping for flow-field measurements

SPIE Proceedings, 2016
In this contribution we use wavefront shaping approaches for image correlation based flow-field measurements for the first time. Aberrations introduced by a single phase boundary in the detection beam path were explored. Variations of the optical path-length result in strong errors in position allocation and thus to an enhancement of the measurement ...
Koukourakis, N., Fregin, B., Büttner, L., Czarske, J. W.   +3 more
openaire   +3 more sources

Monte Carlo simulation of interferometric measurement and wavefront shaping under influence of shot noise and camera noise

JPhys Photonics
Interferometry often serves as an essential building block of wavefront shaping systems to obtain optimal wavefront solutions. In this tutorial, we provide a Monte Carlo simulation tool to calculate the accuracy of interferometric measurements and its ...
Chunghyeong Lee, Jaeyeon Oh, Hakseok Ko, Mooseok Jang   +3 more
doaj   +1 more source