Results 91 to 100 of about 137,822 (286)

Solid‐State Vortex Laser at Eye‐Safe Band: A Perspective

Nanophotonics, Volume 15, Issue 2, 27 January 2026.
As one of the ideal vortex sources, solid‐state vortex laser at eye‐safe band has attracted considerable attention because of its potentials in multifunctional lidar. In this perspective, we summarize the schemes of eye‐safe vortex laser and discuss prospects for future development.
Haojun Zhang, Zhichao Zhang, Lihong Hu, Chunqing Gao, Shiyao Fu   +4 more
wiley   +1 more source

Continuum radiometers of the RATAN-600 radio telescope: current state and directions of development [PDF]

, 2022
П. Г. Цыбулев, Nikolai Alexandrovich Nizhelskij, Mikhail Vadimovich Dugin, Alexei Nikolaevich Borisov, R. Yu. Udovitskiy, Denis Valerievich Kratov   +5 more
openalex   +1 more source

Measuring Track-Related Pointing Errors on the Nanshan Radio Telescope with an Optical Pointing Telescope

Advances in Astronomy
The need for precise radio telescope pointing has driven great attention to investigating the effect of antenna local deformation or irregularity, such as unevenness in the azimuth track.
Ye Yuan, Zhi-Yong Liu, Na Wang
doaj   +1 more source

Exploring radio emissions from confirmed exoplanets using SKA

Frontiers in Astronomy and Space Sciences
Our understanding of magnetic fields in exoplanets remains limited compared to those within our solar system. Planets with magnetic fields emit radio signals primarily due to the Electron Cyclotron Maser Instability mechanism.
Fatemeh Bagheri, Fatemeh Bagheri, Anshuman Garga, Ramon E. Lopez   +3 more
doaj   +1 more source

Search for molecular bremsstrahlung radiation signals in Ku band with coincidental operations of radio telescopes with air shower detectors

EPJ Web of Conferences, 2013
Microwave radiation from extensive air showers is expected to provide a new technique to observe UHECR. We insatlled and operate radio telescopes in Osaka and at Telescope Array site in Utah, USA.
Fukushima Masaki, Sakurai Nobuyuki, Fujii Toshihiro, Akimune Hidetoshi, Iijima Takashi, Kuramoto Kazuyuki, Yamamoto Tokonatsu, Ogio Shoichi, Sagawa Hiroyuki   +8 more
doaj   +1 more source

Adaptation of an IRAM W-Band SIS Receiver to the INAF Sardinia Radio Telescope: A Feasibility Study and Preliminary Tests. [PDF]

Sensors (Basel), 2023
Ladu A, Schirru L, Ortu P, Saba A, Pili M, Navarrini A, Gaudiomonte F, Marongiu P, Pisanu T.   +8 more
europepmc   +1 more source

Halide Perovskite Radiation Detectors: Conventional Imaging Applications and New Opportunities

Advanced Functional Materials, Volume 36, Issue 6, 19 January 2026.
Organic–inorganic hybrid halide perovskite (OIHP) semiconductors, owing to their exceptional optoelectronic properties, are emerging as promising next‐generation integrated radiation detectors for applications in medical radiodiagnosis and healthcare monitoring.
Dou Zhao, Yeon‐Woo Choi, Tomoyuki Yokota, Takao Someya, Nam‐Gyu Park   +4 more
wiley   +1 more source

LOFAR, a new low frequency radio telescope

, 2003
LOFAR, the Low Frequency Array, is a large radio telescope consisting of approximately 100 soccer-field sized antenna stations spread over a region of 400 km in diameter. It will operate at frequencies from ~10 to 240 MHz, with a resolution at 240 MHz of
Barthelmann, Carilli, Carilli, Cohen, De Breuck, Enßlin, Falcke, Huub Röttgering   +7 more
core   +2 more sources

Review on Perovskite Solar Cells: From Single‐Junction Devices to Tandem Deployment in Space

Advanced Sustainable Systems, Volume 10, Issue 1, January 2026.
Perovskite solar cells rapidly approach commercial viability through advances in mixed‐cation compositions, device architectures, and standardized stability protocols. This review summarizes the progress from stabilized single‐junction devices to high‐efficiency tandem cells, scalable manufacturing strategies, and emerging space applications ...
Jiawei Gong, Luke Schneider, Yongtao Liu
wiley   +1 more source

SENSITIVITY OF ACTIVE PHASED ANTENNA ARRAY ELEMENT OF GURT RADIO TELESCOPE

Radio Physics and Radio Astronomy, 2016
Purpose: theoretical and experimental investigations of sensitivity by the signal-to-noise ratio criterion active antenna used as a phased array element of the GURT radio telescope of new generation.
P. L. Tokarsky, A. A. Konovalenko, S. N. Yerin, I. N. Bubnov   +3 more
doaj   +1 more source