Results 81 to 90 of about 17,220,730 (291)

A Trade‐Off between Pulse Energy and Stability in Seeded Free‐Electron Lasers

Advanced Photonics Research, EarlyView.
Seeded free‐electron lasers (FELs) require balancing competing factors for optimal performance. This work analyzes how dispersion strength influences output in high‐gain harmonic generation. Results reveal a trade‐off: maximizing pulse energy often comes at the cost of reduced stability and vice versa.
Li Zeng, Huaiqian Yi, Xiaofan Wang, Chao Feng, Weiqing Zhang   +4 more
wiley   +1 more source

Thermal Shrinkage‐Induced Modifications in Photonic Bandgaps of Two‐Photon Polymerized Bragg Reflectors

Advanced Photonics Research, EarlyView.
Scanning electron microscopy and white‐light reflectance images of the pillar‐supported distributed Bragg reflector (DBR) are presented before and after thermal shrinkage. The DBR, fabricated via two‐photon polymerization, consists of alternating high‐ and low‐index layers supported by vertical pillars.
Yu‐Shao Jacky Chen, Mike P. C. Taverne, Kevin Chung‐Che Huang, Ying‐Lung Daniel Ho, John G. Rarity   +4 more
wiley   +1 more source

Circuit quantum electrodynamics with dressed states of a superconducting artificial atom

Scientific Reports, 2022
A dynamical control of the coupling strengths between dressed states and probe photon states is demonstrated with a transmon-like artificial atom coupled to two closely spaced resonant modes.
Yu-Han Chang, Dmytro Dubyna, Wei-Chen Chien, Chien-Han Chen, Cen-Shawn Wu, Watson Kuo   +5 more
doaj   +1 more source

Vicious walk with a wall, noncolliding meanders, and chiral and Bogoliubov-deGennes random matrices

, 2003
Spatially and temporally inhomogeneous evolution of one-dimensional vicious walkers with wall restriction is studied. We show that its continuum version is equivalent with a noncolliding system of stochastic processes called Brownian meanders.
A. Altland, A. Altland, A. Okounkov, A. Pandey, A. Zvonkin, A.D. Jackson, A.J. Bray, A.J. Guttmann, B. Derrida, B. Lindström, C. Itzykson, C. Krattenthaler, D. ben-Avraham, D.A. Huse, F.J. Dyson, H. Tanemura, Harish-Chandra, Hideki Tanemura, I. Gessel, J. Cardy, J. Cardy, J. Harer, J. Verbaarschot, J.J.M. Verbaarschot, M. Katori, M. Katori, M. Katori, M.E. Fisher, M.K. Sener, M.L. Mehta, M.L. Mehta, Makoto Katori, N. Inui, Naoaki Komatsuda, P.-G. de Gennes, P.J. Forrester, P.L. Krapivsky, S. Karlin, S. Karlin, S. Redner, T. Nagao, T. Nagao, T. Nagao, T. Nagao, T. Sasamoto, T. Sasamoto, T. Tsuchiya, Taro Nagao   +47 more
core   +1 more source

Incoherent Digital Holography Empowered by Wavefront and Information Engineering: A Review

Advanced Photonics Research, EarlyView.
Advancements in incoherent digital holography (IDH) have been achieved via wavefront engineering (using spatial light modulators, diffractive optics, and metasurfaces) and information engineering (using compressive sensing and deep learning). This paper presents an overview of IDH with wavefront and information engineering, paving the way toward its ...
Teruyoshi Nobukawa
wiley   +1 more source

Bessel Beam Diffraction by an Aperture in an Opaque Screen

International Journal of Optics, 2015
The scattering of the Bessel beam by a circular aperture in an opaque screen is investigated by the geometrical theory of diffraction approach. The geometrical optics and diffracted and scattered fields are obtained.
Husnu Deniz Basdemir
doaj   +1 more source

Stimuli-Responsive Actuator Fabricated by Dynamic Asymmetric Femtosecond Bessel Beam for In Situ Particle and Cell Manipulation.

ACS Nano, 2020
Micro-scale intelligent actuators capable of sensitive and accurate manipulation under external stimuli hold great promise in various fields including precision sensors and biomedical devices.
Rui Li, Dongdong Jin, Deng Pan, Shengyun Ji, Chen Xin, Guangli Liu, Shengying Fan, Hao Wu, Jiawen Li, Yanlei Hu, Dong Wu, Li Zhang, J. Chu   +12 more
semanticscholar   +1 more source

Advances in Mode (De)Multiplexing Technologies via Circularly Symmetric Structured Light Beams

Advanced Photonics Research, EarlyView.
This review presents a comprehensive overview of mode (de)multiplexing technologies using circularly symmetric structured light beams, encompassing strategies of beam splitter combinations, multiorder diffractive gratings, optical coordinate transformations, angular dispersion lenses, multilayer cascaded modulations, and multidimensional hybrid (de ...
Qingji Zeng, Shu Chen, Zhibin Wu, Junmin Liu, Huapeng Ye, Gaiqing Zhao, Dianyuan Fan, Shuqing Chen   +7 more
wiley   +1 more source

Analytic representation of the distributional finite Hankel transform

International Journal of Mathematics and Mathematical Sciences, 1985
Various representations of finite Hankel transforms of generalized functions are obtained. One of the representations is shown to be the limit of a certain family of regular generalized functions and this limit is interpreted as a process of truncation ...
O. P. Singh, Ram S. Pathak
doaj   +1 more source

Generation of High‐Brilliance Polarized γ‐Rays Via Vacuum Dichroism‐Assisted Vacuum Birefringence

Advanced Science, EarlyView.
A novel method is proposed for generating such γ‐photon beams via the vacuum‐dichroism‐assisted quantum vacuum birefringence effect, only utilizing well‐established unpolarized electron beams and solving the critical problem of demanding polarized ones.
Chong Lv, Feng Wan, Yousef I. Salamin, Qian Zhao, Mamutjan Ababekri, Ruirui Xu, Jian‐Xing Li   +6 more
wiley   +1 more source