Article
Physics, Multidisciplinary
Yunfei Wang, Jia-Hui Zhang, Yuqing Li, Jizhou Wu, Wenliang Liu, Feng Mei, Ying Hu, Liantuan Xiao, Jie Ma, Cheng Chin, Suotang Jia
Summary: In this study, we experimentally demonstrated the existence of a mobility edge induced by interactions through the synthesis of a nonlinear AA model. We constructed a phase diagram to characterize the extended-to-localized transition of different energy eigenstates. Our findings support the interpretation of the interaction-induced mobility edge using a generalized AA model and offer new possibilities for engineering quantum transport and phase transitions in disordered systems.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
Roshan Sajjad, Jeremy L. Tanlimco, Hector Mas, Alec Cao, Eber Nolasco-Martinez, Ethan Q. Simmons, Flavio L. N. Santos, Patrizia Vignolo, Tommaso Macri, David M. Weld
Summary: This article reports the experimental observation of the quantum boomerang effect and elucidates the crucial role of initial-state symmetries in this effect. The results highlight the importance of Anderson localization and provide a unique experimental probe of the underlying quantum nature of localized matter.
Review
Physics, Multidisciplinary
Jian Zhao, Xiaowen Hu, Stefan Gausmann, Jose Enrique Antonio-Lopez, Rodrigo Amezcua Correa, Axel Schuelzgen
Summary: Fiber-optic imaging systems have unique advantages in imaging deep into tissues, but are limited by conventional optical fiber waveguide modes and image reconstruction methods. Emerging disordered Anderson localizing optical fibers overcome these limitations and, when integrated with deep learning algorithms, offer enhanced imaging capabilities.
FRONTIERS IN PHYSICS
(2021)
Article
Optics
Jiajia Zhao, Yali Zhao, Changbang He, Jinshuai Zhang, Yiyu Mao, Wangyang Cai, Haimei Luo
Summary: This study demonstrates a method to enhance the transverse Anderson localization effect of glass-air disordered optical fiber by adjusting the number and diameter of air holes. By choosing the appropriate parameters, the localized beam radius of the fiber can be successfully reduced, even at lower air-filling fractions.
Review
Physics, Multidisciplinary
Arash Mafi, John Ballato
Summary: Nearly a decade ago, researchers observed transverse Anderson localization in optical fibers, leading to the development of a new class of fibers that do not guide light based on total internal reflection. These fibers have been successfully used in endoscopic image transport and show interesting nonlinear and lasing properties.
FRONTIERS IN PHYSICS
(2021)
Article
Physics, Multidisciplinary
Ze-Kun Jiang, Ruo-Jing Ren, Yi-Jun Chang, Wen-Hao Zhou, Yong-Heng Lu, Xiao-Wei Wang, Li Wang, Chang -Shun Wang, Alexander S. Solntsev, Xian-Min Jin
Summary: We report the observation of dynamic localization for quantum-correlated biphotons, including both the generation and propagation aspects. Our experimental results demonstrate the effectiveness of various dynamic modulation parameters in protecting quantum states without introducing complex topologies.
PHYSICAL REVIEW LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Jiangfeng Niu, Liuge Du, Jiewen Chi, Cong Zhang, Jianwei Li, Chonglei Sun, Jia Zhao
Summary: This paper investigates the potential of disordered waveguides mediated by transverse Anderson localization for mode division multiplexing systems. The average width of localized modes is proposed as a measurement for localization length, while the design parameters of disordered waveguides have an impact on the average width of localized modes.
IEEE PHOTONICS JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Joana Fraxanet, Utso Bhattacharya, Tobias Grass, Maciej Lewenstein, Alexandre Dauphin
Summary: In this study, we generalize the phase diagram of the Kitaev chain model in the presence of quasiperiodic potentials by investigating the localization properties of the Aubry-Andre-Harper model with long-range hopping and superconducting pairing amplitudes. We find transitions between ergodic, localized, and multifractal states, as well as energy-dependent transitions from ergodic to multifractal states for certain parameters. The size of the intermediate multifractal region depends on the superconducting pairing term and energy band, and the transitions are characterized by hybridization of bands with different localization properties.
Article
Optics
Jiajia Zhao, Changbang He, Haimei Luo, Yali Zhao, Yiyu Mao, Wangyang Cai
Summary: This paper presents a detailed study on the effect of the material refractive index distribution of a G-DOF on its localized beam radius. The study found that a larger proportion of glass material leads to a smaller localized beam radius, implying a stronger transverse Anderson localization effect. To address this, a novel G-DOF with large-size glass elements doped in the fiber cross-section is proposed. Simulation results demonstrate that the doped large-size glass elements can reduce the localized beam radius in the doped region without significant impact on the undoped region, thereby contributing to a reduction in the average localized beam radius of G-DOF.
Article
Physics, Multidisciplinary
Louisiane Devaud, Bernhard Rauer, Jakob Melchard, Matthias Kuehmayer, Stefan Rotter, Sylvain Gigan
Summary: The research presents a method for controlling speckle correlations behind a scattering medium through the singular value decomposition of the transmission matrix. This allows for controlling speckle grain size and shape, as well as realizing patterns with nonlocal correlations. The method also extends to volumetric speckle engineering along the axial dimension behind scattering layers.
PHYSICAL REVIEW LETTERS
(2021)
Article
Optics
Xudong Guo, Yu-Xuan Ren, Li Li, Zihui Wang, Shenzhi Wang, Mingyan Gao, Zuobin Wang, Kenneth K. Y. Wong
Summary: Ultrathin broadband absorbers with a near-uniform low reflectivity play a crucial role in optical applications. A new technique for large-scale fabrication of quasi-random Mie resonators using a high-throughput laser interference induced quasi-random patterning (LIIQP) technique is presented. The fabricated ultrathin absorber exhibits a near-uniform broadband reflectivity below 3% over a 400-1100 nm spectrum region. This technique enables the rapid production of quasi-random dielectric Mie-resonant metasurfaces with promising applications in thin-film solar cells, display, and imaging.
Article
Materials Science, Multidisciplinary
Ya-Xi Shen, Yu-Gui Peng, Pei-Chao Cao, Jensen Li, Xue-Feng Zhu
Summary: In this study, the localization and delocalization of flat-band states in an acoustic cubic lattice are investigated theoretically and experimentally. The construction of flat-band states is found to depend only on the excitation pressures and coupling coefficients, which are frequency independent. The flat-band state can either spread into the whole lattice or be localized in a primitive cell, depending on the excitation frequency.
Article
Mathematics, Applied
Wilhelm Schlag
Summary: These lectures cover the spectral analysis of lattice Schrodinger operators with disordered potentials, including random and quasiperiodic potentials, as well as discussion on localization theorems.
NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS
(2022)
Article
Quantum Science & Technology
Nikolay Kalinin, Thomas Dirmeier, Arseny A. Sorokin, Elena A. Anashkina, Luis L. Sanchez-Soto, Joel F. Corney, Gerd Leuchs, Alexey V. Andrianov
Summary: This paper reports on a new all-fiber setup for generating polarization squeezed light. The setup is composed of passive elements only, making it simple, stable, and easy to set up. More than 5 dB of directly measured squeezing is achieved over long periods of time without any adjustments. Therefore, this new scheme provides a robust and easy-to-set-up method for obtaining squeezed light applicable to various applications.
ADVANCED QUANTUM TECHNOLOGIES
(2023)
Article
Optics
Helene Wetter, Zlata Fedorova, Stefan Linden
Summary: Using evanescently coupled waveguides, we investigated the propagation of surface plasmon polaritons and observed plasmonic analogs of Bloch oscillations and the Wannier-Stark ladder.
Article
Engineering, Electrical & Electronic
Alexander B. Yakovlev, Yashwanth R. Padooru, George W. Hanson, Arash Mafi, Salman Karbasi
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2011)
Article
Engineering, Electrical & Electronic
Mehdi Nosrati, Salman Karbasi Valashani
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
(2008)
Article
Optics
Salman Karbasi, Craig R. Mirr, Ryan J. Fraizer, Parisa Gandomkar Yarandi, Karl W. Koch, Arash Mafi
Article
Engineering, Electrical & Electronic
Salman Karbasivalashani, Arash Mafi
IEEE PHOTONICS JOURNAL
(2010)
Article
Materials Science, Multidisciplinary
Salman Karbasi, Thomas Hawkins, John Ballato, Karl W. Koch, Arash Mafi
OPTICAL MATERIALS EXPRESS
(2012)
