Results 61 to 70 of about 5,929,903 (194)

The gravitational field of a light wave

, 2008
According to the classical Einstein-Maxwell theory of gravity and electromagnetism, a light-wave traveling in empty space-time is accompanied by a gravitational field of the pp-type.
Baldwin, Blau, Brinkmann, Duval, Fuster, Maldacena, Papapetrou, van Holten   +7 more
core   +2 more sources

Precision separation of thick double-sided microlens arrays via stepwise immersion ultrafast laser modification and controlled thermal stress

Materials & Design
Double-sided microlens arrays (DSMLAs) are integral to large field of view imaging and precise beam shaping in compact optical systems. However, separating thick DSMLAs with precision and efficiency remains challenging, particularly due to laser ...
Qiuchen Xie, Tianfeng Zhou, Zhikang Zhou, Xuan Cui, Zihao Zeng, Peng Liu   +5 more
doaj   +1 more source

Joint Blind Motion Deblurring and Depth Estimation of Light Field

, 2018
Removing camera motion blur from a single light field is a challenging task since it is highly ill-posed inverse problem. The problem becomes even worse when blur kernel varies spatially due to scene depth variation and high-order camera motion.
A Beck, A Gupta, A Sellent, J Wulff, JA Scales, L Xu, O Whyte, R Ng, Rob Fergus, Rolf Köhler, S Cho, TF Chan, Y Bok   +12 more
core   +1 more source

Four-State Programmable Quasi-BIC Metasurface with Polarization-Divergent Dispersion Rewriting

Photonics
A central challenge in reconfigurable photonics based on quasi bound states in the continuum (quasi-BICs) is to move beyond binary switching toward multistate and polarization-aware programmability.
Wenbin Wang, Yun Meng
doaj   +1 more source

Role reversal in a Bose-condensed optomechanical system

, 2012
We analyze the optomechanics-like properties of a Bose-Einstein condensate (BEC) trapped inside an optical resonator and driven by both a classical and a quantized light field.
Keye Zhang, Pierre Meystre, V. B. Braginsky, Weiping Zhang   +3 more
core   +1 more source

Chip-integrated van der Waals PN heterojunction photodetector with low dark current and high responsivity

Light: Science & Applications, 2022
We report a waveguide-integrated BP/MoTe2 PN heterojunction photodetector. It presents ultralow dark currents and high responsivities, which has potentials to develop high-performance on-chip photodetectors for various photonic integrated circuits.
Ruijuan Tian, Xuetao Gan, Chen Li, Xiaoqing Chen, Siqi Hu, Linpeng Gu, Dries Van Thourhout, Andres Castellanos-Gomez, Zhipei Sun, Jianlin Zhao   +9 more
doaj   +1 more source

Characterization of anisotropic nano-particles by using depolarized dynamic light scattering in the near field

, 2009
Light scattering techniques are widely used in many fields of condensed and sof t matter physics. Usually these methods are based on the study of the scattered light in the far field.
A. P. Philipse, Bandyopadhyay, Bellini, Bellini, Brogioli, Brogioli, Brogioli, Cipelletti, Croccolo, D. Brogioli, D. Salerno, Degiorgio, F. Croccolo, F. Mantegazza, Ferri, Giglio, Giglio, Koenderink, Lee, Oh, Piazza, Pine, Pusey, S. Sacanna, Schatzel, Scheffold, Sugimoto, Thomas, Trainoff, V. Cassina, Wu   +30 more
core   +1 more source

Phase-matching-induced near-chirp-free solitons in normal-dispersion fiber lasers

Light: Science & Applications, 2022
The fiber birefringence, chromatic dispersion, and nonlinear effect follow a phase-matching principle, enabling the formation of birefringence-managed solitons in normal-dispersion fiber lasers containing a section of polarization-maintaining fiber.
Dong Mao, Zhiwen He, Yusong Zhang, Yueqing Du, Chao Zeng, Ling Yun, Zhichao Luo, Tijian Li, Zhipei Sun, Jianlin Zhao   +9 more
doaj   +1 more source

A 4D Light-Field Dataset and CNN Architectures for Material Recognition

, 2016
We introduce a new light-field dataset of materials, and take advantage of the recent success of deep learning to perform material recognition on the 4D light-field.
A Jarabo, C Farabet, C Kim, C Liu, E Hayman, K He, K Marwah, KJ Dana, L Sharan, M Weinmann, OG Cula, R Raghavendra, S Bell, W Li, X Qi   +14 more
core   +1 more source

Spin-Momentum Locking in the Near Field of Metal Nanoparticles

, 2017
Light carries both spin and momentum. Spin-orbit interactions of light come into play at the subwavelength scale of nano-optics and nano-photonics, where they determine the behaviour of light.
Cacciola, Adriano, Nori, Franco, Patanè, Salvatore, Saija, Rosalba, Savasta, Salvatore, Triolo, Claudia   +5 more
core   +1 more source