Article
Optics
Francisco J. Diaz-Fernandez, Javier Marti, Carlos Garcia-Meca
Summary: Invisibility cloaks are a significant development in the field of metamaterials. While most efforts have been focused on improving the effectiveness of cloaks, little attention has been paid to the development of efficient techniques for detecting invisibility devices. This study proposes a different approach using diffraction tomography to enhance efficiency in detecting and obtaining images of invisibility cloaks, leading to improved sensitivity and potential application in sound cloaks.
LASER & PHOTONICS REVIEWS
(2023)
Article
Optics
Niklas M. Luepken, Maximilian Timmerkamp, Ramona Scheibinger, Kay Schaarschmidt, Markus A. Schmidt, Klaus-J Boller, Carsten Fallnich
Summary: Evidence of intermodal dispersive wave generation by iXPM between different transverse modes during supercontinuum generation in silicon nitride waveguides is presented. The phase modulation of a weak transverse mode by iXPM enables dispersive wave generation within the weak mode, which otherwise lacks the power to facilitate such wave formation. The nonlinear frequency conversion scheme suggests novel phase-matching conditions for extending the spectral bandwidth within supercontinuum generation.
LASER & PHOTONICS REVIEWS
(2021)
Article
Quantum Science & Technology
Robert Starek, Michal Micuda, Michal Kolar, Radim Filip, Jaromir Fiurasek
Summary: In this study, conditional enhancement of overall coherence of quantum states was investigated through probabilistic quantum operations that utilize a quantum filter diagonal in the basis of incoherent states. Optimal filters were identified to maximize output coherence for a given probability of successful filtering. Through a proof-of-principle experiment with linear optics, the performance of the studied quantum filters was verified and optimal quantum coherence enhancement by quantum filtering was observed.
QUANTUM SCIENCE AND TECHNOLOGY
(2021)
Article
Optics
Changhui Hong, Dejun Kong, Ruolan Yu, Jian Ding, Weiwei Chen, Pengjun Wang, Shixun Dai, Jun Li, Yan Li, Qiang Fu, Tingge Dai, Hui Yu, Jianyi Yang
Summary: This paper proposes and investigates a novel design for an optical Feynman gate, utilizing silicon microring resonators to perform logic operations. Experimental results demonstrate the feasibility of the design.
OPTICS COMMUNICATIONS
(2022)
Article
Optics
Guowu Zhang, Dan-Xia Xu, Yuri Grinberg, Odile Liboiron-Ladouceur
Summary: This paper presents experimental results of integrated photonic devices optimized with an energy-constrained inverse design method. The energy constraint leads to more robust designs with larger minimum feature sizes, and nearly binarized structures without additional binarization. It improves performance in mode converters and duplexer designs, as well as robustness to fabrication imperfections. The introduction of energy constraint into topological optimization results in computationally efficient designs with better performance.
PHOTONICS RESEARCH
(2022)
Article
Engineering, Electrical & Electronic
Mengyu Wang, Yu Yang, Zhizhou Lu, Weiqiang Wang, Wenfu Zhang, Chengfeng Xie, Huikai Zhong, Lingfeng Wu, Tao Wu, Qinggui Tan, Yanjun Fu, Keyi Wang
Summary: This study demonstrates the superior performance and experimental results of silica MBR, confirming its potential applications in nonlinear optical research. Experimental observations of various nonlinear scattering effects suggest the potential of MBR in practical applications such as frequency conversion, spectroscopy, and communications.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Sergejs Boroviks, Andrei Kiselev, Karim Achouri, Olivier J. F. Martin
Summary: We have demonstrated a nonlinear plasmonic metasurface that has a strongly asymmetric second-harmonic generation. The nonlinear scattering is efficient when excited in one direction, but it is suppressed when the excitation direction is reversed, creating a diode-like functionality. Experimental measurements show a significant extinction ratio of approximately 10 dB for second-harmonic generation with opposite excitations, and these findings are supported by full-wave simulations. The asymmetry in the material composition, achieved by using a combination of aluminum and silver, leads to a bianisotropic response of the system.
Article
Computer Science, Information Systems
Chao Geng, Fan Zou, Feng Li, Guan Huang, Jing Zuo, Jiaying Liu, Zhihua Fan, Xinyang Li
Summary: A novel method of pre-compensating the phase distortions outside the fiber laser array based on active integrated wavefront sensing is proposed and demonstrated experimentally. The method can improve the transmission efficiency of the system and achieve better performance in the atmosphere.
Article
Multidisciplinary Sciences
J. Jarvis, V Lebedev, A. Romanov, D. Broemmelsiek, K. Carlson, S. Chattopadhyay, A. Dick, D. Edstrom, I Lobach, S. Nagaitsev, H. Piekarz, P. Piot, J. Ruan, J. Santucci, G. Stancari, A. Valishev
Summary: Particle accelerators and storage rings have greatly contributed to scientific discoveries, with innovations in particle-beam cooling playing a crucial role. Optical stochastic cooling (OSC), an extension of stochastic cooling to optical frequencies, has been pursued for its potential to drastically increase cooling rates. In a recent proof-of-principle experiment at Fermi National Accelerator Laboratory, OSC demonstrated its capability to simultaneously cool particle beams in all dimensions, paving the way for more advanced experiments and potential applications.
Article
Physics, Multidisciplinary
Jia-Min Xu, Yi-Zheng Zhen, Yu-Xiang Yang, Zi-Mo Cheng, Zhi-Cheng Ren, Kai Chen, Xi-Lin Wang, Hui-Tian Wang
Summary: This article reports a faithful experimental demonstration of quantum pseudotelepathy, achieved by playing the nonlocal version of the magic square game. The results show that under the assumptions of locality and fair-sampling, quantum players can win all the queries over any classical strategy with a probability of 1.
PHYSICAL REVIEW LETTERS
(2022)
Article
Optics
Tiago E. C. Magalhaes, Jose M. Rebordao, Alexandre Cabral
Summary: The article presents spatial coherence measurements of partially coherent light in the experimental setting of incoherent sources, using a specific optical setup. By comparing the results with the van Cittert-Zernike theorem, the feasibility of the experiment is validated.
Article
Multidisciplinary Sciences
Ali Abdolali, Hooman Barati Sedeh, Mohammad Hosein Fakheri, Chen Shen, Fei Sun
Summary: This study proposes a design principle for achieving an Arbitrary Shape Magnifying Lens (ASML) using transformation acoustics methodology, capable of realizing far-field high resolution images and breaking the diffraction limit. The obtained material behaves as an Acoustic Null Medium (ANM), characterized by homogeneity and independence from perturbations in the geometry of the lens.
SCIENTIFIC REPORTS
(2021)
Article
Materials Science, Multidisciplinary
Mohammad Hosein Fakheri, Atefeh Ashrafian, Hooman Barati Sedeh, Ali Abdolali
Summary: This paper introduces a reconfigurable cloak technology based on transformation optics to guide the propagation of surface plasmon polaritons (SPPs) at a distorted metal-dielectric interface. The cloak consists of optic null medium (ONM) material, independent of the cloak's shape, allowing on-demand control over the flow of SPPs by changing the cloak's shape while keeping its constituent material unchanged. This unique design approach may open up new possibilities in nano-optics and downsizing of photonic circuits.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Optics
Chenglong Wang, Xiang Guo, Xidong Wu
Summary: This paper proposes and investigates a graphene plasmonic lens with an electrically tunable focal length. By controlling the gate voltage of graphene, the lens can be continuously tuned from a Maxwell Fisheye lens to a Luneburg lens, and excellent focusing performances are achieved.
Article
Optics
Ya Jin, Yinfang Chen, Wei Chen, Ninghua Zhu
Summary: This paper investigates and experimentally demonstrates the effect of filter parameters on the performance of the typical all-optical thresholding system. It is found that an optimal system performance can be achieved with specific center wavelength and passband width.
OPTICS COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Igor I. Smolyaninov, Vera N. Smolyaninova, Alexei I. Smolyaninov
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2015)
Article
Materials Science, Multidisciplinary
Igor I. Smolyaninov, Vera N. Smolyaninova
Article
Optics
Igor I. Smolyaninov
Article
Multidisciplinary Sciences
Vera N. Smolyaninova, Kathryn Zander, Thomas Gresock, Christopher Jensen, Joseph C. Prestigiacomo, M. S. Osofsky, Igor I. Smolyaninov
SCIENTIFIC REPORTS
(2015)
Article
Astronomy & Astrophysics
Eduardo Bittencourt, Jonas P. Pereira, Igor I. Smolyaninov, Vera N. Smolyaninova
CLASSICAL AND QUANTUM GRAVITY
(2016)
Article
Optics
Augustine M. Urbas, Zubin Jacob, Luca Dal Negro, Nader Engheta, A. D. Boardman, P. Egan, Alexander B. Khanikaev, Vinod Menon, Marcello Ferrera, Nathaniel Kinsey, Clayton DeVault, Jongbum Kim, Vladimir Shalaev, Alexandra Boltasseva, Jason Valentine, Carl Pfeiffer, Anthony Grbic, Evgenii Narimanov, Linxiao Zhu, Shanhui Fan, Andrea Alu, Ekaterina Poutrina, Natalia M. Litchinitser, Mikhail A. Noginov, Kevin F. MacDonald, Eric Plum, Xiaoying Liu, Paul F. Nealey, Cherie R. Kagan, Christopher B. Murray, Dorota A. Pawlak, Igor I. Smolyaninov, Vera N. Smolyaninova, Debashis Chanda
Article
Multidisciplinary Sciences
Vera N. Smolyaninova, Christopher Jensen, William Zimmerman, Joseph C. Prestigiacomo, Michael S. Osofsky, Heungsoo Kim, Nabil Bassim, Zhen Xing, Mumtaz M. Qazilbash, Igor I. Smolyaninov
SCIENTIFIC REPORTS
(2016)
Article
Engineering, Electrical & Electronic
Igor I. Smolyaninov, Quirino Balzano, Christopher C. Davis, Dendy Young
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2018)
Article
Engineering, Marine
Igor Smolyaninov, Quirino Balzano, Dendy Young
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2020)
Article
Optics
Igor I. Smolyaninov
Summary: A new type of low-loss surface electromagnetic wave can propagate in a lossy medium if the permittivity of the medium changes continuously along a planar surface, with potential applications in super-resolution microscopy and nanolithography. Different from plasmonics-based nanophotonic devices, the new class of surface waves can be supported by a wider range of lossy media like graphite and silicon, particularly suitable for UV nanophotonics applications. The results obtained have broad applicability across the electromagnetic spectrum, including efficient underwater radio communication and imaging using long-range surface electromagnetic radio waves.
Article
Astronomy & Astrophysics
Igor I. Smolyaninov
Summary: This paper examines the corrections to the Friedmann equations caused by fast fluctuations in the universe scale factor, which have been proposed as a potential solution to the cosmological constant problem. These fluctuations can also induce significant changes to the average cosmological force, potentially explaining modifications in Newtonian dynamics in galaxy-scale systems. Additionally, quantum fluctuations in the scale factor can lead to considerable modifications in cosmological evolution, including late-time accelerated expansion of the universe and changes in the effective universe potential.
Article
Astronomy & Astrophysics
Igor I. Smolyaninov, Vera N. Smolyaninova
Summary: This study demonstrates the similarity between sound waves and gravitational waves in hyperbolic metamaterials, as well as the similarity between phonons and gravitons. Near phase transitions in these metamaterials, quantum gravity effects can be switched on or off. Additionally, it is predicted that there will be a strong enhancement of sonoluminescence in ferrofluid-based hyperbolic metamaterials, resembling particle creation in strong gravitational fields.
Article
Engineering, Electrical & Electronic
Igor I. Smolyaninov, Quirino Balzano, Alexander B. Kozyrev
Summary: Underwater radio communication using surface electromagnetic waves propagating along the seawater-air and seawater-sea floor interfaces is a promising alternative to acoustic communication underwater. The properties of TE and TM polarized surface electromagnetic waves are analyzed and computed in detail. The resulting surface waves have longer propagation ranges compared to bulk propagation in the lossy media. The ability of carrying broadband radio signals over practical communication distances underwater is demonstrated theoretically and experimentally, where a 50 MHz radio signal was successfully transmitted over a 7 m distance along the sandy seabed.
IEEE OPEN JOURNAL OF ANTENNAS AND PROPAGATION
(2023)
Article
Astronomy & Astrophysics
Igor I. Smolyaninov
Article
Materials Science, Multidisciplinary
Igor I. Smolyaninov, Vera N. Smolyaninova