Results 91 to 100 of about 61,302 (288)

Nonlinear QED effects in X-ray emission of pulsars

, 2017
In the presence of strong magnetic fields near pulsars, the QED vacuum becomes a birefringent medium due to nonlinear QED interactions. Here, we explore the impact of the effective photon-photon interaction on the polarization evolution of photons ...
Haghighat, Mansour, Shakeri, Soroush, Xue, She-Sheng   +2 more
core   +1 more source

The Evolution of Laser‐Induced Damage Patterns in Polymer Stabilized Liquid Crystals: Insights From Morphological Characterization and Thermo‐Driven Simulations

Advanced Optical Materials, EarlyView.
A dual‐domain PSLC architecture enables direct comparison of alignment‐dependent laser damage within a single device. Crack‐like and seal‐like morphologies emerge under different damage conditions, and their evolution is interpreted through quantitative image analysis and heat‐driven simulations.
Dengcheng Chen, Zoey S. Davidson, Brian P. Radka, Selim Elhadj, Liang‐Chy Chien   +4 more
wiley   +1 more source

High dynamic range vector soliton mode-locking via nonlinear Sagnac gating

APL Photonics
Ultrafast fiber lasers enable vector soliton generation with richer dynamics than scalar solitons, offering enhanced flexibility for high-capacity communications and optical storage.
Kun Chen, Tao Cao, Xinyi Yan, Jinlong Zheng, Zhou Li, Qi Xu, Leyan Yang, Jing Li, Mingtao Peng, Yuxin Leng, Jiahui Peng   +10 more
doaj   +1 more source

Genetic-Algorithm-Driven Intelligent Spatiotemporal Mode-Locking in All-Fiber Laser with Hysteresis

Photonics
We demonstrate a robust intelligent spatiotemporal mode-locked fiber laser with large modal dispersion, based on the nonlinear polarization rotation mechanism and an electric polarization controller (EPC).
Yangbing Lin, Yongguo Zheng, Xinhai Zhang   +2 more
doaj   +1 more source

Ultrasensitive Atomic Spin Measurements with a Nonlinear Interferometer

, 2014
We study nonlinear interferometry applied to a measurement of atomic spin and demonstrate a sensitivity that cannot be achieved by any linear-optical measurement with the same experimental resources.
Boixo, Budker, de Echaniz, Kubasik, Napolitano, Sewell, Sewell, Wineland   +7 more
core   +2 more sources

Multi‐Mode Deep Strong Coupling in a Multi Quantum Well Fabry–Perot Cavity

Advanced Optical Materials, EarlyView.
Multi‐mode deep‐strong coupling is demonstrated in a 166‐well heterostructure that acts as a Fabry–Perot cavity. Even cavity modes couple strongly to the cyclotron resonance, producing large vacuum Rabi splittings and a rich polaritonic spectrum captured by a full Hopfield model.
Lucy Hale, Johan Andberger, Ethan Koskas, Frieder Lindel, Mattias Beck, Giacomo Scalari, Jérôme Faist   +6 more
wiley   +1 more source

Cylindrical Vector Beams with an MOPA Amplifier Based on Nonlinear Polarization Rotation Mode-Locking

Photonics
CVBs (cylindrical vector beams) are widely used in optical imaging, optical trapping, material processing, etc. In this study, based on mode-selective couplers and passive mode-locking fiber technology, a cylindrical vector fiber amplifier with an MOPA ...
Tianyu Zhang, Dong Li, Siqi Pei, Yun Zhu, Jiapeng Hu, Xuesheng Liu, Anru Yan, Youqiang Liu, Zhiyong Wang   +8 more
doaj   +1 more source

All-optical logic gates based on nonlinear polarization rotation in high nonlinear fiber

Acta Physica Sinica, 2012
A novel scheme to realize all-optical logic gates is proposed based on nonlinear polarization rotation (NPR) in high nonlinear fiber (HNLF). Two optical signals A and B together with a continuous wave are injected into the HNLF. Due to the optical power variation in HNLF, nonlinear birefringence will be induced between the two polarization axes.
null Wang Wen-Rui, null Yu Jin-Long, null Han Bing-Chen, null Guo Jing-Zhong, null Luo Jun, null Wang Ju, null Liu Yi, null Yang En-Ze   +7 more
openaire   +1 more source

Harnessing Ultrafast Optical Pulses for 3D Microfabrication by Selective Tweezing and Immobilization of Colloidal Particles in an Integrated System

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
Microfabrication using nano‐ to micron‐sized blocks has transformative potential for next‐gen electronics, optoelectronics, and materials. Traditional methods are limited by scalability and precision. STIC, a single‐laser system for precise colloid manipulation and immobilization using femtosecond lasers, is introduced that enables efficient 3D ...
Krishangi Krishna, Jieliyue Sun, Wenyu Liu, Robert H. Hurt, Kimani C. Toussaint Jr.   +4 more
wiley   +1 more source

Mechanism of Spectrum Moving, Narrowing, Broadening, and Wavelength Switching of Dissipative Solitons in All-Normal-Dispersion Yb-Fiber Lasers

IEEE Photonics Journal, 2014
We report experimental observations and numerical simulation results on the spectrum moving, narrowing, broadening, and wavelength switching of dissipative solitons (DSs) in an all-normal-dispersion Yb-fiber laser that is passively mode-locked by using ...
J. L. Luo, Y. Q. Ge, D. Y. Tang, S. M. Zhang, D. Y. Shen, L. M. Zhao   +5 more
doaj   +1 more source