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Given that the phase amplification method based on harmonic generation exhibits significant phase super-resolution capability in interferometric precision measurement, extending this technology to birefringence interferometers to achieve…

Optics · Physics 2025-03-13 Wuzhen Li , Zhiyuan Zhou , Guangcan Guo , Baosen Shi

The accuracy of hadrontherapy treatment is currently limited by ion-range uncertainties. In order to fully exploit the potential of this technique, we propose the development of a novel system for online control of particle therapy, based…

The POLARBEAR-2/Simons Array Cosmic Microwave Background (CMB) polarization experiment is an upgrade and expansion of the existing POLARBEAR-1 (PB-1) experiment, located in the Atacama desert in Chile. Along with the CMB temperature and…

Instrumentation and Methods for Astrophysics · Physics 2018-06-15 Logan Howe , Calvin Tsai , Lindsay Lowry , Kam Arnold , Gabriele Coppi , John Groh , Xiaoyu Guo , Brian Keating , Adrian Lee , Andrew J. May , Lucio Piccirillo , Nathan Stebor , Grant Teply

In recent years there has been considerable interest in developing photonic temperature sensors such as the Fiber Bragg gratings (FBG) as an alternative to resistance thermometry. In this study we examine the thermal response of FBGs over…

Optics · Physics 2016-03-25 Zeeshan Ahmed , James Filla , William Guthrie , John Quintavalle

The MicroBooNE experiment is designed to observe interactions of neutrinos with a Liquid Argon Time Projection Chamber (LArTPC) detector from the on-axis Booster Neutrino Beam (BNB) and off-axis Neutrinos at the Main Injector (NuMI) beam at…

Instrumentation and Detectors · Physics 2015-11-03 Jyoti Joshi , Xin Qian

The methodology for a heterodyned laser-induced transient thermal grating technique for non-contact, non-destructive measurements of thermal transport in opaque material is presented. Phase-controlled heterodyne detection allows us to…

We have developed a 230 and 345 GHz very-long-baseline interferometry (VLBI) receiver for the South Pole Telescope (SPT). With the receiver installed, the SPT has joined the global Event Horizon Telescope (EHT) array. The receiver optics…

Instrumentation and Methods for Astrophysics · Physics 2018-09-25 Junhan Kim , Daniel P. Marrone

The Five-hundred-meter Aperture Spherical radio Telescope (FAST) has been running for several years. A new Ultra-Wide Bandwidth (UWB) receiver, simultaneously covering 500-3300 MHz, has been mounted in the FAST feed cabin and passed a…

Instrumentation and Methods for Astrophysics · Physics 2023-06-27 Chuan-Peng Zhang , Peng Jiang , Ming Zhu , Jun Pan , Cheng Cheng , Hong-Fei Liu , Yan Zhu , Chun Sun , FAST Collaboration

We present results from a first attempt to mitigate radio frequency interference in real-time during astronomical measurements with a phased array feed on the 64 m Parkes radio telescope. Suppression of up to 20 dB was achieved despite…

Instrumentation and Methods for Astrophysics · Physics 2017-10-16 A. P. Chippendale , G. Hellbourg

We have developed, built, and tested a new feed design for interferometric radio telescopes with "large-$N$, small-$D$" designs. Those arrays require low-cost and low-complexity feeds for mass production on reasonable timescales and…

Instrumentation and Methods for Astrophysics · Physics 2025-09-17 Vincent MacKay , Mark Lai , Peter Shmerko , Dallas Wulf , Leonid Belostotski , Keith Vanderlinde

Photonic generation of radio-frequency signals has shown significant advantages over the electronic counterparts, allowing the high precision generation of radio-frequency carriers up to the terahertz-wave region with flexible bandwidth for…

Applied Physics · Physics 2021-12-01 Ziqian Zhang , Yang Liu , Benjamin J. Eggleton

This study proposes a novel design of glucose sensor with enhanced selectivity and sensitivity by using graphene Schottky diodes, which is composed of Graphene (G)/Platinum Oxide (PtO)/n-Silicon (Si) heterostructure. The sensor was tested…

Applied Physics · Physics 2020-01-01 Mahmoud A. Sakr , Karim Elgammal , Anna Delin , Mohamed Serry

The combination of low temperature and low vibration levels is key for ultrasensitive sensing applications such as scanning probe microscopy, large-mass quantum mechanics, and gravitational wave detection. Unfortunately, closed-cycle…

High-resolution spectroscopy on the $A^2\Pi$ - $X^2\Sigma^+$ electronic system of $^{138}$Ba$^{19}$F is performed using a cold molecular beam produced by a buffer gas source. The hyperfine structure in both $X^2\Sigma^+$ ground and $A^2\Pi$…

We describe a compact and versatile multi-frequency laser system for laser-cooling potassium atoms, by frequency doubling a fiber-optic telecom beam ($\simeq 1534$ or $1540$~nm). Low-power fiber-based telecom lasers and components generate…

The BICEP/Keck series of experiments target the Cosmic Microwave Background at degree-scale resolution from the South Pole. Over the next few years, the "Stage-3" BICEP Array (BA) telescope will improve the program's frequency coverage and…

Instrumentation and Methods for Astrophysics · Physics 2023-07-19 Marion Dierickx , P. A. R. Ade , Zeeshan Ahmed , Mandana Amiri , Denis Barkats , Ritoban Basu Thakur , Colin A. Bischoff , Dominic Beck , James J. Bock , Victor Buza , James R. Cheshire , Jake Connors , James Cornelison , Michael Crumrine , Ari Jozef Cukierman , Edward Denison , Lionel Duband , Miranda Eiben , Sofia Fatigoni , Jeff P. Filippini , Christos Giannakopoulos , Neil Goeckner-Wald , David Goldfinger , James A. Grayson , Paul Grimes , Grantland Hall , George Halal , Mark Halpern , Emma Hand , Sam A. Harrison , Shawn Henderson , Sergi Hildebrandt , Gene C. Hilton , Johannes Hubmayr , Howard Hui , Kent D. Irwin , Jae Hwan Kang , Kirit S. Karkare , Sinan Kefeli , J. M. Kovac , Chao-Lin Kuo , King Lau , Erik M. Leitch , Amber Lennox , K , . G. Megerian , Lorenzo Minutolo , Lorenzo Moncelsi , Yuka Nakato , Toshiya Namikawa , H. T. Nguyen , Roger O'brient , Steven Palladino , Matthew Petroff , Nathan Precup , Thomas Prouve , Clement Pryke , Benjamin Racine , Carl D. Reintsema , Destiny Santalucia , Alessandro Schillaci , Benjamin Schmitt , Baibhav Singari , Ahmed Soliman , Tyler St Germaine , Bryan Steinbach , Rashmi Sudiwala , Keith L. Thompson , Carole Tucker , Anthony D. Turner , Caterina Umiltà , Clara Verges , Abigail G. Vieregg , Albert Wandui , Alexis C. Weber , Don Wiebe , Justin Willmert , Wai Ling K. Wu , Hung-I Yang , Ki Won Yoon , Edward Young , Cyndia Yu , Lingzhen Zeng , Cheng Zhang , Silvia Zhang

Aims. As part of the ongoing GRAVITY+ upgrade of the Very Large Telescope Interferometer infrastructure, we aim to improve the performance of the GRAVITY Fringe-Tracker, and to enable its use by other instruments. Methods. We modify the…

Advances in cryogenic electron microscopy have opened new avenues for probing quantum phenomena in correlated materials. This study reports the installation and performance of a new side-entry condenZero cryogenic cooling system for JEOL…

Strongly Correlated Electrons · Physics 2025-09-30 Young-Hoon Kim , Fehmi Sami Yasin , Na Yeon Kim , Max Birch , Xiuzhen Yu , Akiko Kikkawa , Yasujiro Taguchi , Jiaqiang Yan , Miaofang Chi

We present a vector network analyzer (VNA) based broadband cryogenic ferromagnetic resonance (FMR) spectrometer, operating up to 20 GHz over a temperature range of 11 to 350 K. A cost effective architecture is implemented through the…

Instrumentation and Detectors · Physics 2026-01-13 Anna Merin Francis , Sunil Nair

We describe a cryogenic instrumentation platform incorporating commercially-available field-programmable gate arrays (FPGAs) configured to operate well beyond their specified temperature range. The instrument enables signal routing,…

Instrumentation and Detectors · Physics 2016-01-20 I. D. Conway Lamb , J. I. Colless , J. M. Hornibrook , S. J. Pauka , S. J. Waddy , M. K. Frechtling , D. J. Reilly