Review
Chemistry, Physical
Carlos Algora, Ivan Garcia, Marina Delgado, Rafael Pena, Carmen Vazquez, Manuel Hinojosa, Ignacio Rey-Stolle
Summary: This review provides an overview of photovoltaic laser power converters (PVLPCs) and their functionalities and critical requirements in power-by-light (PBL) systems. A detailed comparison among different types of PVLPCs is conducted, highlighting their advantages and disadvantages. The review also discusses the perspectives and potential ways to improve the efficiency of PVLPCs.
Article
Multidisciplinary Sciences
Yahya Mohtashami, Ryan A. DeCrescent, Larry K. Heki, Prasad P. Iyer, Nikita A. Butakov, Matthew S. Wong, Abdullah Alhassan, William J. Mitchell, Shuji Nakamura, Steven P. DenBaars, Jon A. Schuller
Summary: The study demonstrates two-dimensional metasurface axicons and lenses that emit collimated and focused beams, predicting photoluminescence properties using engineered incident light sources. Comparison of collimating and focusing performances across different light-emitting metasurface axicons and lenses is conducted, showing potential for future development of light sources with arbitrary functionalities.
NATURE COMMUNICATIONS
(2021)
Editorial Material
Multidisciplinary Sciences
Han Cai, Da-Wei Wang
Summary: The text discusses the emerging research field of topological photonics, focusing on the topological states of classical light. It reveals the intrinsic topological phases related to the quantum nature of light, presents a model of Fock states, and demonstrates a transition between different phases induced by inhomogeneous coupling strengths. By extending the lattice to higher dimensions, it provides a novel platform for studying topological physics beyond three dimensions.
NATIONAL SCIENCE REVIEW
(2021)
Article
Computer Science, Software Engineering
Yuta Itoh, Takumi Kaminokado, Kaan Aksit
Summary: The study introduces a new type of near-eye display system called "beaming displays" which uses a projector and a passive wearable headset to beam images, avoiding the trade-offs in existing designs and providing high-resolution display. The system can track the position of the wearable headset in real-time to ensure projecting images to the correct position on the retina.
IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS
(2021)
Article
Optics
[Anonymous]
Summary: The article introduces a type of topological defect found in electromagnetic waves, namely topological spin defects. Such defects are associated with points where the electromagnetic spin density is zero, and exhibit nontrivial topological spin textures and quantized topological charges. Examples of different types of defect points in electromagnetic fields are provided, with potential applications in 3D imaging and nanoparticle manipulation.
Editorial Material
Nanoscience & Nanotechnology
Penglin Gao, Johan Christensen
Summary: Localized zero-energy fermionic states can bind to topological defects like two-dimensional vortices, which can be found in the bulk of artificial acoustic and optical lattices.
NATURE NANOTECHNOLOGY
(2021)
Article
Optics
Konrad Tschernig, Gabriel Martinez-Niconoff, Kurt Busch, Miguel A. Bandres, Armando Perez-Leija
Summary: Topological physics is utilized to create systems with unique wave-guiding properties. Photonic topological insulators have been developed to enable topologically protected light states that propagate along the system's edge without coupling into the bulk or backscattering. This study explores the interplay between topological protection and the degree of spatial coherence in classical light propagating in disordered photonic topological insulators, finding that there exists a well-defined spectral window in which partially coherent light is topologically protected.
PHOTONICS RESEARCH
(2022)
Article
Physics, Multidisciplinary
Guillermo Arregui, Jordi Gomis-Bresco, Clivia M. Sotomayor-Torres, Pedro David Garcia
Summary: The article analyzes the impact of the backscattering mean free path and the group velocity slowdown factor on slow-light transmission in topological photonic waveguides, highlighting the importance of considering these two factors when assessing the robustness of topological and conventional slow-light transport at the nanoscale.
PHYSICAL REVIEW LETTERS
(2021)
Article
Oncology
Osman Muddassir Siddiqui, Bansi Savla, Mudit Chowdhary, Sarah McAvoy, Mark Mishra
Summary: The study aimed to assess the use of paternity leave in radiation oncology practices and identify barriers. It found that although supported by most physicians, paternity leave was underused due to external pressures and inconsistent policies.
INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS
(2022)
Article
Multidisciplinary Sciences
Konrad Tschernig, Alvaro Jimenez-Galan, Demetrios N. Christodoulides, Misha Ivanov, Kurt Busch, Miguel A. Bandres, Armando Perez-Leija
Summary: Topological insulators offer dissipationless transport along edges, but entangled states may deteriorate rapidly in the presence of disorder. Maximizing entanglement without sacrificing topological protection requires fitting the joint spectral correlation map of two-photon states inside a well-defined topological window.
NATURE COMMUNICATIONS
(2021)
Article
Astronomy & Astrophysics
Javier De Miguel, Chiko Otani
Summary: This article discusses the non-adiabatic photon-to-axion resonant conversion dominating the spectral density function of pulsars and estimates the dark matter flux induced by this conversion across the light cylinder of the neutron star. It suggests that pulsars might produce axion overdensities many orders of magnitude over the occupation number of dark matter in the Galactic halo, pointing out possible new methods for axion detection derived from these results and other future lines of work.
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2022)
Article
Physics, Multidisciplinary
Olesia Dmytruk, Marco Schiro
Summary: The authors theoretically investigate the interplay between topological phases of matter and quantum light, finding that quantum light can affect the topological properties of the system. They also compute the polariton spectrum of the coupled system to probe the phase transition.
COMMUNICATIONS PHYSICS
(2022)
Article
Astronomy & Astrophysics
W. X. Yang, H. G. Wang, Y. Liu, J. H. Yang, H. B. Xiao, X. H. Ye, Z. Y. Pei, L. X. Zhang, J. H. Fan
Summary: Blazars exhibit extreme observational properties that are linked to the beaming effect and selection effect, with luminosity being related to frequency. The Compton dominance parameter is correlated with luminosity and Doppler factor, and the bolometric luminosity can be represented by gamma-ray luminosity for Fermi blazars.
ASTROPHYSICAL JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
S. Sajad Dabiri, Hosein Cheraghchi, Ali Sadeghi
Summary: The study examines the photon-dressed electronic band structure of topological insulator thin films doped by magnetic impurities under the influence of off-resonance time-periodic electromagnetic field. Different phases emerge in the phase diagram depending on the frequency, intensity, and polarization of the light. The existence of quantum anomalous Hall insulator and quantum pseudo-spin Hall insulator phases, as well as anisotropic helical edge states, are confirmed through numerical calculations and analysis of the Hall conductivity and Chern number.
Article
Optics
Xun Lu
Summary: This paper investigates the directional beaming of metallic subwavelength slits surrounded by dielectric gratings. The structure design was formulated as an optimization problem for the far-field angular transmission. The proposed method combines a vertical mode expansion method with a genetic algorithm and an active set method to achieve efficient beaming effects with flexible and precise control.
Article
Chemistry, Analytical
Taylor Shields, Adetunmise C. Dada, Lennart Hirsch, Seungjin Yoon, Jonathan M. R. Weaver, Daniele Faccio, Lucia Caspani, Marco Peccianti, Matteo Clerici
Summary: The THz electro-optical sampling technique using single-photon detectors and squeezed vacuum field as the optical probe has been successfully demonstrated in experiments. The sensitivity of the field measurement is limited by the statistical properties of the probe state, which can be improved by using phase-locked single-photon detectors.
