Optics Express
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#1Xinzhong Chen (SBU: Stony Brook University)H-Index: 17
#2Ziheng Yao (SBU: Stony Brook University)H-Index: 6
Last. Mengkun Liu (SBU: Stony Brook University)H-Index: 37
view all 6 authors...
The scattering-type scanning near-field optical microscope (s-SNOM) has emerged as a powerful tool for resolving nanoscale inhomogeneities in laterally heterogeneous samples. However, most analytical models used to predict the scattering near-field signals are assuming homogenous landscapes (bulk materials), resulting in inconsistencies when applied to samples with more complex configurations. In this work, we combine the point-dipole model (PDM) to the finite-element method (FEM) to account for...
#1Zhikai Ma (Soochow University)
#2Huiying Fan (Soochow University)
Last. Jie Luo (Soochow University)H-Index: 18
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Dynamically switchable light transmission/absorption functionality is highly desirable in sensing and functional devices. However, the operating bandwidth of the newly emerging schemes using resonant meta-structures is inherently limited. In this work, we design and numerically demonstrate a non-resonant tilted anisotropic metamaterial consisting of phase-change materials. When the phase transition of the phase-change material from amorphous phase to crystalline phase occurs, the functionality o...
#1Simin Zhang (OSU: The Ohio State University)H-Index: 2
#2Michael Tripepi (OSU: The Ohio State University)H-Index: 4
Last. Enam Chowdhury (OSU: The Ohio State University)H-Index: 20
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High peak and average power lasers with high wall-plug efficiency, like the Big Aperture Thulium (BAT) laser, have garnered tremendous attention in laser technology. To meet the requirements of the BAT laser, we have developed low-dispersion reflection multilayer dielectric (MLD) gratings suitable for compression of high-energy pulses for operations at 2 micron wavelength. We carried out 10000-on-1 damage tests to investigate the fluence damage thresholds of the designed MLD gratings and mirrors...
#1Zheng Huang (SZU: Shenzhen University)
#2Zhiyong Bai (SZU: Shenzhen University)H-Index: 21
Last. Yiping Wang (SZU: Shenzhen University)H-Index: 42
view all 9 authors...
A class of ultra-short chiral long period fiber gratings (CLPFGs) are prepared by writing a spiral curve on the surface of a six-mode fiber. The CLPFGs are applied to excite ±2nd- and ±3rd-order orbital angular momentum (OAM) modes. The coupling efficiency of the CLPFG in these modes can be as high as 99%, when the length is only 0.5cm. The polarization characteristic of the excited higher-order OAM modes in CLPFGs was theoretically analyzed and experimentally investigated. Results show that the...
#1Z.X.Li (NU: Nanjing University)
#2Ya-Ping Ruan (NU: Nanjing University)H-Index: 3
Last. Yan-qing Lu (NU: Nanjing University)H-Index: 55
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Self-healing of an Airy beam during propagation is of fundamental interest and also promises important applications. Despite many studies of Airy beams in the quantum regime, it is unclear whether an Airy beam only including a single photon can heal after passing an obstacle because the photon may be blocked. Here we experimentally observe self-healing of a heralded single-photon Airy beam. Our observation implies that an Airy wave packet is robust against obstacle caused distortion and can rest...
#1Yan Xing (HIT: Harbin Institute of Technology)H-Index: 4
#2Xue-Dong Zhao (HIT: Harbin Institute of Technology)H-Index: 3
Last. Hong-Fu Wang (Yanbian University)H-Index: 22
view all 6 authors...
We theoretically and systematically investigate Anderson localization of two bosons with nearest-neighbor interaction in one dimension under short- and long-time scales, two types of disorders, and three types of initial states, which can be directly observed in linear disordered photonic lattices via two experimentally measurable physical quantities, participation ratio and spatial correlation. We find that the behavior of localization characterized by the participation ratio depends on the str...
#1A. K. M. Naziul Haque (BUET: Bangladesh University of Engineering and Technology)
#2Tashfiq Ahmed (BUET: Bangladesh University of Engineering and Technology)
Last. Zunaid Baten (BUET: Bangladesh University of Engineering and Technology)H-Index: 9
view all 3 authors...
In this work we propose and analyze techniques of in-plane directionality control of strongly localized resonant modes of light in random arrays of dielectric scatterers. Based on reported diameters and areal densities of epitaxially grown self-organized nanowires, two-dimensional (2D) arrays of dielectric scatterers have been analyzed where randomness is gradually increased along a preferred direction of directionality enhancement. In view of the multiple-scattering mediated wave dynamics and d...
#1Jeong-Seon Yu (CNU: Chungnam National University)H-Index: 3
#2Jong-Hyun Kim (CNU: Chungnam National University)H-Index: 9
We present a security device that can detect and block hacking using the characteristics of liquid crystals. This device is based on a liquid crystal cell consisting of a uniformly aligned layer and a photo-alignment layer. To inscribe a pattern, the device is illuminated when the liquid crystal is in the smectic phase. The resulting image is invisible after light irradiation. Heating to the nematic phase improves this alignment and reveals the recorded pattern. Returning to the smectic phase di...
#1Xing-Yu Wu (BUPT: Beijing University of Posts and Telecommunications)
#2Yong Zhang (BUPT: Beijing University of Posts and Telecommunications)H-Index: 13
Last. Chuan Wang (BNU: Beijing Normal University)H-Index: 27
view all 4 authors...
Optomagnonic structures are widely studied in the field of nanophotonics and quantum information science. They are the key platforms for the realization of magnon-mediated microwave to optical transducers in various applications of quantum computing. In order to enhance the coupling between light (photons) and spin waves (magnons), here in this work, we use the Lagrange multiplication method to find the optimum matching condition between the optical whispering-gallery mode and the magnon with Ki...
#1Feng Wang (WIT: Wuhan Institute of Technology)H-Index: 3
#2ZhangTao Xiong (WIT: Wuhan Institute of Technology)
Last. Peixiang Lu (WIT: Wuhan Institute of Technology)H-Index: 61
view all 5 authors...
We investigate the photoemission process of the hydrogen atom in a spatial-dependent infrared (IR) field. The results show that the inhomogeneous field induces an additional contribution to the photoemission time delay, which results in the increase (decrease) of the photoemission time delay due to the enhancement (decay) of the IR field intensity in space when compared to the case in the homogeneous field. Based on the photoemission time delay in the inhomogeneous field, we demonstrate a method...
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