English
Related papers

Related papers: Tunable temporal gap based on simultaneous fast an…

200 papers

A tuning of the light transmission properties of 1D photonic structures employing an external stimulus is very attracting and opens the way to the fabrication of optical switches for colour manipulation in sensing, lighting, and display…

We analyse nonequilibrium phase transitions in microcavity polariton condensates trapped in optically induced annular potentials. We develop an analytic model for annular optical traps, which gives an intuitive interpretation for recent…

Mesoscale and Nanoscale Physics · Physics 2019-03-27 A. V. Nalitov , H. Sigurdsson , S. Morina , Y. S. Krivosenko , I. V. Iorsh , Y. G. Rubo , A. V. Kavokin , I. A. Shelykh

Inspired by how cells pack in dense biological tissues, we design 2D and 3D amorphous materials which possess a complete photonic band gap. A physical parameter based on how cells adhere with one another and regulate their shapes can…

Soft Condensed Matter · Physics 2024-09-09 Xinzhi Li , Amit Das , Dapeng Bi

We demonstrate theoretically the electric tunability due to coalescence of exceptional points in PT-symmetric waveguides bounded by imperfect conductive layers. Owing to the competition effect of multimode interaction, multiple exceptional…

Optics · Physics 2017-02-02 Jin Wang , Hui Yuan Dong , Raymond P. H. Wu , T. C. Mok , Kin Hung Fung

An unusual photo-galvanic effect is predicted on the topological insulator surface when its semi-metallic electronic spectrum is modified by an adjacent ferromagnet. The effect is correlated with light absorption in a wide frequency range…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 Yuriy G. Semenov , Xiaodong Li , Ki Wook Kim

Recently, Chumak et al. have demonstrated experimentally the time-reversal of microwave spin pulses based on non-adiabatically tuning the wave speed in a spatially-periodic manner. Here, we solve the associated wave equations analytically,…

Optics · Physics 2015-05-28 Yonatan Sivan , John B. Pendry

Losses are ubiquitous and unavoidable in nature inhibiting the performance of most optical processes. Manipulating losses to adjust the dissipation of photons is analogous to braking a running car that is as important as populating photons…

Optics · Physics 2022-01-05 Longqing Cong , Jiaguang Han , Weili Zhang , Ranjan Singh

Photonic circuits are central to classical and quantum information processing. While integrated technologies dominate, free-space architectures are emerging as attractive alternatives, offering broad bandwidth and direct manipulation of…

We study plasmonic time crystals, an extension of dielectric-based photonic time crystals to plasmonic media. Remarkably, we demonstrate that such systems may amplify both longitudinal and transverse modes. In particular, we show that…

The optical properties of photonic structures made with more than two materials are very interesting for optical filtering and lighting applications. Herein, we compared the transmission properties of one-dimensional photonic crystals made…

Optics · Physics 2014-12-16 Ilka Kriegel , Francesco Scotognella

We present temporal intensity correlation measurements of light scattered by a hot atomic vapor. Clear evidence of photon bunching is shown at very short time-scales (nanoseconds) imposed by the Doppler broadening of the hot vapor.…

Atomic Physics · Physics 2016-06-01 A. Dussaux , T. Passerat de Silans , W. Guerin , O. Alibart , S. Tanzilli , F. Vakili , R. Kaiser

We introduce topological defect to a square lattice of elliptical cylinders. Despite the broken translational symmetry, the long-range positional order of the cylinders leads to residual photonic bandgap in the density of optical states.…

Optics · Physics 2016-02-18 Seng Fatt Liew , Sebastian Knitter , Wen Xiong , Hui Cao

We demonstrate that multiple topological transitions can occur, with high-sensitivity, by continuous change of the geometry of a simple 2D dielectric-frame photonic crystal consisting of circular air-holes. By changing the radii of the…

Optics · Physics 2018-03-01 Xuan Zhu , Hai-Xiao Wang , Changqing Xu , Yun Lai , Jian-Hua Jiang , Sajeev John

We report on experimental evidences of the preservation of energy-time entanglement for extraordinary plasmonic light transmission through sub-wavelength metallic hole arrays, and for long range surface plasmon polaritons. Plasmons are…

Quantum Physics · Physics 2013-01-22 Sylvain Fasel , Nicolas Gisin , Hugo Zbinden , Daniel Erni , Esteban Moreno , Frank Robin

Controlling topological phases of light has allowed experimental observations of abundant topological phenomena and development of robust photonic devices. The prospect of more sophisticated controls with topological photonic devices for…

One of the principal goals in the design of photonic crystals is the engineering of band gaps and defect states. Drawing on the concepts of band-structure topology, I here describe the formation of exponentially localized, topologically…

Optics · Physics 2013-05-28 Henning Schomerus

In recent years a remarkable progress was made in the construction of spatial cloaks using the methods of transformation optics and metamaterials. The temporal cloaking, i.e. the cloaking of an event in spacetime, was also widely studied by…

Mathematical Physics · Physics 2019-02-12 Gregory Eskin

We numerically study the statistical fluctuations of photonic band gaps in ensembles of stealthy hyperuniform disordered patterns. We find that at low stealthiness, where correlations are weak, band gaps of different system realizations…

Classical Physics · Physics 2023-05-31 Luis S. Froufe-Pérez , Geoffroy Aubry , Frank Scheffold , Sofia Magkiriadou

From the Feynman path integration theory of view, the Hanbury Brown--Twiss effect would not be observed for one definite two-photon propagation path, as well as the superbunching effect. Here, temporal and spatial superbunching effects are…

Optics · Physics 2021-07-07 Sheng Luo , Huai-Bin Zheng , Wan-Ting Xu , Yu-Chen He , huang-Hao Zhang , Zhuo Xu

The increasing interest in chiral light stems from its spiral trajectory along the propagation direction, facilitating the interaction between different polarization states of light and matter. Despite tremendous achievements in chiral…

Optics · Physics 2024-02-06 Lu Wang , Marcelo Fabián Ciappina , Thomas Brabec , Xiaojun Liu