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New concepts for observing the gravitational waves (GWs) using a detector on the Moon, such as the Lunar Gravitational-wave Antenna (LGWA), have gained increasing attention. By utilizing the Moon as a giant antenna, the LGWA is expected to…

高能天体物理现象 · 物理学 2025-08-07 Hanlin Song , Han Yan , Yacheng Kang , Xian Chen , Junjie Zhao , Lijing Shao

Magnetowave induced plasma wakefield acceleration (MPWA) in a relativistic astrophysical outflow has been proposed as a viable mechanism for the acceleration of cosmic particles to ultra high energies. Here we present simulation results…

天体物理学 · 物理学 2009-04-08 Feng-Yin Chang , Pisin Chen , Guey-Lin Lin , Kevin Reil , Richard Sydora

High-quality planar cavities with low-absorption mirrors based on $Al_{0.2}Ga_{0.8}As/Al_{0.9}Ga_{0.1}As$ layers demonstrate continuous wave lasing at a wavelength of 956 nm. At 300 K, the threshold power density and quality-factor at the…

This paper discusses numerical and experimental results on frequency downshifting and upshifting of a 10 $\mu$m infrared laser to cover the entire wavelength (frequency) range from $\lambda$=1-150 $\mu$m ($\nu$=300-2 THz) using two…

等离子体物理 · 物理学 2021-02-24 Zan Nie , Yipeng Wu , Chaojie Zhang , Warren B. Mori , Chan Joshi , Wei Lu , Chih-Hao Pai , Jianfei Hua , Jyhpyng Wang

Manipulating the electromagnetic spectrum at the single-photon level is fundamental for quantum experiments. In the visible and infrared range, this can be accomplished with atomic quantum emitters, and with superconducting qubits such…

量子物理 · 物理学 2025-05-14 Alexander Anferov , Fanghui Wan , Shannon P. Harvey , Jonathan Simon , David I. Schuster

Antennas typically have emission/radiation efficiencies bounded by A/(lambda)^2 (A < lambda^2) where A is the emitting area and lambda is the wavelength of the emitted wavelength. That makes it challenging to miniaturize antennas to extreme…

应用物理 · 物理学 2023-02-10 J. L. Drobitch , A. De , K. Dutta , P. K. Pal , A. Adhikari , A. Barman , S. Bandyopadhyay

Modern hadron-spectroscopy experiments such as COMPASS collect data samples of unprecedented size, so that novel analysis techniques become possible and necessary. One such technique is the freed-isobar partial-wave analysis (PWA). In this…

高能物理 - 实验 · 物理学 2020-12-03 Fabian Krinner

We used two novel approaches to produce sub-wavelength structure (SWS) anti-reflection coatings (ARC) on silicon for the millimeter and sub-millimeter (MSM) wave band: picosecond laser ablation and dicing with beveled saws. We produced…

天体物理仪器与方法 · 物理学 2017-06-09 Karl Young , Qi Wen , Shaul Hanany , Hiroaki Imada , Jürgen Koch , Tomotake Matsumura , Oliver Suttmann , Viktor Schütz

We use mesoscale simulations to demonstrate the feasibility of a novel microfluidic valve, which exploits Gibbs' pinning in microchannels patterned by posts or ridges, together with electrowetting.

软凝聚态物质 · 物理学 2010-04-26 B. M. Mognetti , J. M. Yeomans

High-quality micropillar cavities were grown using molecular-beam epitaxy. Stable continuous-wave lasing at room-temperature was demonstrated for microlasers with semiconductor and hybrid output mirrors. At 300 K, single-mode lasing was…

The Disk Loaded Waveguide (DLW) is the mostly used high frequency structure for acceleration of lightweight particles - electrons in the high energy range. In some physical experiments acceleration of more heavy particles - muons to medium…

加速器物理 · 物理学 2013-09-02 V. Paramonov

Millimeter-wave observations of pulsars, while crucial for understanding their emission mechanisms, remain scarce. We demonstrate that high-precision cosmic microwave background (CMB) experiments like the Atacama Cosmology Telescope (ACT),…

Cold atmospheric pressure plasmas are crucial for applications in medicine, agriculture, and material processing, where their interaction with ambient air generates reactive oxygen and nitrogen species for disinfection and treatment…

等离子体物理 · 物理学 2025-03-27 Muhammad Rizwan Akram , Abbas Semnani

A novel broadband microwave (MW) spectrum measurement (BMSM) scheme based on code-free optical undersampling and homodyne detection is proposed. The fully analog generation of optical pulses with a far-less-than-Nyquist rate is only through…

信号处理 · 电气工程与系统科学 2019-08-02 Guangyu Gao , Xueshuang Xiang , Qijun Liang , Naijin Liu

In this work, we present a comparative study between continuous-wave (CW) and pulsed optical tweezers for 250 nm, 500 nm and 1-micron radius polystyrene beads at 5 different laser powers. We have used a Ti:Sapphire (MIRA 900F) laser that…

光学 · 物理学 2024-08-21 Ajitesh Singh , Krishna Kant Singh , Deepak Kumar , Debabrata Goswami

We demonstrate loading by laser ablation of $^{88}$Sr$^+$ ions into a mm-scale surface-electrode ion trap. The laser used for ablation is a pulsed, frequency-tripled Nd:YAG with pulse energies of 1-10 mJ and durations of 3-5 ns. An…

The Substrate Integrated Waveguide (SIW) technology is a very promising technique with which we can take the advantages of both waveguides and planar transmission lines. Therefore, in [2.1-3] GHz band various microwave components and…

新兴技术 · 计算机科学 2014-05-09 Rahali Bochra , Feham Mohammed , Junwu Tao

With energy-time entangled biphoton sources as the optical carrier and time-correlated single-photon detection for high-speed radio frequency (RF) signal recovery, the method of quantum microwave photonics (QMWP) has presented the…

We propose a novel mechanism for ion acceleration based on the guided motion of electrons from a thin target. The electron motion is locked to the moving nodes of a standing wave formed by a chirped laser pulse reflected from a mirror…

等离子体物理 · 物理学 2016-09-07 Felix Mackenroth , Arkady Gonoskov , Mattias Marklund
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