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65 papers · 1 filter
Quantum-optical theory of the few femtosecond nonlinear optical response of Drude metals with a non-parabolic conduction band
Ieng-Wai Un, Subhajit Sarkar, Yonatan Sivan
We develop an energy-space density matrix framework to investigate the interaction of extremely short optical pulses (ESPs) with transparent conducting oxides (TCOs). This approach…
Topological edge states in curved zigzag superlattices in nonlinear exciton-polaritons
Jing Wang, Tobias Schneider, Wei Hu +2
Zigzag chains allow for the formation of topological edge states. Several distinct chain architectures have been developed for this purpose. Here, we report a zigzag superlattice,…
Tunable beam splitting via photorefractive nonlinearity and its applications in chiral waveguide induction and vortex generation
Hechong Chen, Zihan Liu, Shengdi Lian +6
We report experimental observation and theoretical explanation of novel propagation regimes for optical beams in an artificial nonlinear material with outstanding photorefractive p…
High efficiency spin-decoupled modulation using chiral C2-symmetric meta-atoms
Haohan Chen, Jiepeng Wu, Minglei He +7
Orthogonal circularly polarized light is essential for multiplexing tunable metasurfaces. Mainstream spin-decoupled metasurfaces, consisting of numerous meta-atoms with mirror symm…
Polarization-insensitive dual-wavelength dispersion tunable metalens achieved by global modulation method
Haohan Chen, Qianbin Feng, Jiepeng Wu +4
SF is widely used as a gas-insulator in high-voltage power electrical system. Detecting SF leaks using unmanned aerial vehicle (UAV)-based thermal cameras allows efficient…
Optical-controlled ultrafast dynamics of skyrmion in antiferromagnets
S. H. Guan, Y. Liu, Z. P. Hou +7
Optical vortex, a light beam carrying orbital angular momentum (OAM) has been realized in experiments, and its interactions with magnets show abundant physical characteristics and…