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Coherent microwave-to-optical conversion is crucial for transferring quantum information generated in the microwave domain to optical frequencies, where propagation losses can be minimised. Among the various physical platforms that have…

Atomic Physics · Physics 2023-12-06 Benjamin D. Smith , Bahar Babaei , Andal Narayanan , Lindsay J. LeBlanc

Recently, there is a series of reports by Wang et al. on the superconductivity in K-doped p-terphenyl (KxC18H14) with the transition temperatures range from 7 to 123 Kelvin. Identifying the structural and bonding character is the key to…

Superconductivity · Physics 2018-05-24 Guo-Hua Zhong , Xiao-Hui Wang , Ren-Shu Wang , Jia-Xing Han , Chao Zhang , Xiao-Jia Chen , Hai-Qing Lin

Organic molecules embedded in an organic matrix exhibit lifetime-limited optical coherence and bright emission at cryogenic temperatures below 3 K. Here we present a simple vapor-phase growth method for synthesizing optically thin DBT-doped…

We characterize spinning dust emission in the warm ionized medium by comparing templates of Galactic dust and Halpha with the 5-year maps from the Wilkinson Microwave Anisotropy Probe. The Halpha-correlated microwave emission deviates from…

Astrophysics · Physics 2009-07-22 Gregory Dobler , Bruce T. Draine , Douglas P. Finkbeiner

We report on a lightwave-driven scanning tunneling microscope based on a home-built microscope and a compact, commercial, and cost-effective terahertz-generation unit with a repetition rate of 100 MHz. The measurements are performed in…

Mesoscale and Nanoscale Physics · Physics 2024-02-27 Hüseyin Azazoglu , Philip Kapitza , Martin Mittendorff , Rolf Möller , Manuel Gruber

In the PANDA experiment at the FAIR facility at GSI two DIRC (Detection of Internally Reflected Cherenkov light) detectors will be used for $\pi$/K separation up to 4 GeV/c. Due to their location in a high magnetic field and other stringent…

We demonstrate a Terahertz photomixer pumped by mid-infrared photons at 10$\mu$m wavelength. The device is based on a dual-antenna architecture, in which a two-dimensional array of mid-infrared patch-antenna resonators is connected to the…

Optics · Physics 2025-03-27 Q. Lin , J-F. Lampin , G. Ducournau , S. Lepillet , H. Li , E. Peytavit , S. Barbieri

The observed prevalence of oscillatory signals in the spectroscopy of biological light-harvesting complexes at ambient temperatures has led to a search for mechanisms supporting coherent transport through larger molecules in noisy…

Biological Physics · Physics 2012-09-20 Christoph Kreisbeck , Tobias Kramer

The Terahertz band, spanning from 0.1~THz to 10~THz, is envisioned as a key technology to realize ultra-high data rates in the 6G and beyond mobile communication systems, due to its abundant bandwidth resource. However, to realize THz…

Information Theory · Computer Science 2024-02-09 Yuanbo Li , Yiqin Wang , Yi Chen , Ziming Yu , Chong Han

Optimal radiator thermal emission spectra maximizing thermophotovoltaic (TPV) conversion efficiency and output power density are determined when temperature effects in the cell are considered. To do this, a framework is designed in which a…

Computational Physics · Physics 2015-12-08 John DeSutter , Michael P. Bernardi , Mathieu Francoeur

Laser plasma acceleration at kilohertz repetition rate has recently been shown to work in two different regimes, with pulse lengths of either 30 fs or 3.5 fs. We now report on a systematic study in which a large range of pulse durations and…

In this study, we evaluate and compare the pulse shape discrimination (PSD) performance of multipixel photon counters (MPPCs, also known as silicon photomultiphers - SiPMs) with that of a typical photomultiplier tube (PMT) when testing…

Instrumentation and Detectors · Physics 2021-01-06 Nguyen V. H. Viet , M. Nomachi , K. Takahisa , T. Shima , B. T. Khai , R. Takaishi , K. Miyamoto

The potassium-doped p-terphenyl compounds were synthesized in recent experiments and the superconductivity with high transition temperatures were reported, but the atomic structure of potassium-doped p-terphenyl is unclear. In this paper,…

Superconductivity · Physics 2018-11-27 Xun-Wang Yan , Zhongbing Huang , Miao Gao , Chunfang Zhang

In recent years Gas Electron Multipliers have proven to be reliable amplification stages at high beam rates, and can be used also in Time Projection Chambers. Our group developed a 1 dm$^3$ active volume double-GEM TPC, with spatial…

Instrumentation and Detectors · Physics 2020-09-07 Gábor Galgóczi , Gergő Hamar , Péter Pázmándi , Dezső Varga

Spatiotemporal metasurfaces, characterized by dynamic variations in both space and time, enable functionalities unattainable with passive metasurfaces. In this study, we propose a novel concept of parametric metasurfaces capable of…

Optics · Physics 2025-07-14 Fedor V. Kovalev , Ilya V. Shadrivov

TITAN (TRIUMF's Ion Traps for Atomic and Nuclear science) is an online facility designed to carry out high-precision mass measurements on singly and highly charged radioactive ions. The TITAN Penning trap has been built and optimized in…

Instrumentation and Detectors · Physics 2015-05-30 M. Brodeur , V. L. Ryjkov , T. Brunner , S. Ettenauer , A. T. Gallant , V. V. Simon , M. J. Smith , A. Lapierre , R. Ringle , P. Delheij , M. Good , D. Lunney , J. Dilling

The operation of large arrays of silicon photomultipliers (SiPM) in tanks of noble liquids requires low noise, low power front-end amplifiers, able to operate reliably in the cryogenic environment. A suitable amplifier needs to be paired…

Instrumentation and Detectors · Physics 2023-10-09 P. Carniti , E. Cristaldo , A. Falcone , C. Gotti , G. Pessina , F. Terranova

In statistical physics, the efficiency of tempering approaches strongly depends on ingredients such as the number of replicas $R$, reliable determination of weight factors and the set of used temperatures, ${\mathcal T}_R = \{T_1, T_2,…

Statistical Mechanics · Physics 2014-09-01 A. Valentim , M. G. E. da Luz , Carlos E. Fiore

Effective control of terahertz radiation requires the development of efficient and fast modulators with a large modulation depth. This challenge is often tackled by using metamaterials, artificial sub-wavelength optical structures…

Spatial signal processors (SSP) for emerging millimeter-wave wireless networks are critically dependent on link discovery. To avoid loss in communication, mobile devices need to locate narrow directional beams with millisecond latency. In…

Signal Processing · Electrical Eng. & Systems 2021-06-03 Chung-Ching Lin , Chase Puglisi , Veljko Boljanovic , Soumen Mohapatra , Han Yan , Erfan Ghaderi , Deukhyoun Heo , Danijela Cabric , Subhanshu Gupta