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We investigate the chemical and structural configuration of acetophenone on Si(001) using synchrotron radiation core-level spectroscopy techniques and density functional theory calculations. Samples were prepared by vapour phase dosing of…

Materials Science · Physics 2015-06-22 Kane M. O'Donnell , Oliver Warschkow , Asif Suleman , Adam Fahy , Lars Thomsen , Steven R. Schofield

We develop a compact whispering-gallery-mode (WGM) sensing system by integrating multiple components, including a tunable laser, a temperature controller, a function generator, an oscilloscope, a photodiode detector, and a testing computer,…

Optics · Physics 2016-11-23 Xiangyi Xu , Xuefeng Jiang , Guangming Zhao , Lan Yang

Small scale renewable energy harvesting is an attractive solution to the growing need for power in remote technological applications. For this purpose, localized thermal gradients on-chip--created via radiative cooling--could be exploited…

Observation of quantum phenomena in cryogenic, optically cooled mechanical resonators has been recently achieved by a few experiments based on cavity optomechanics. A well-established experimental platform is based on a thin film…

The fundamentals of the whispering gallery mode (WGM) resonators are well established in the literature, with several successful proof-of-concept experiments. One remarkable benefit of this technology is the room-temperature operation. This…

Instrumentation and Methods for Astrophysics · Physics 2020-02-04 Javier De Miguel-Hernández , Roger J. Hoyland

We study the mechanical quality factors of bilayer aluminum/silicon-nitride membranes. By coating ultrahigh-Q Si3N4 membranes with a more lossy metal, we can precisely measure the effect of material loss on Q's of tensioned resonator modes…

Mesoscale and Nanoscale Physics · Physics 2012-05-08 P. -L. Yu , T. P. Purdy , C. A. Regal

Large power consumption of silicon CMOS electronics is a challenge in very-large-scale integrated circuits and a major roadblock to fault-tolerant quantum computation. Matching the power dissipation of Si-MOSFETs to the thermal budget at…

Optically levitated nanomechanical resonators in vacuum perform ultrahigh sensitivity for mechanical quantities by overcoming the limitations of clamped resonators. However, the generally levitated silica nanoparticles (NPs) with low…

Optical metasurfaces have been enabling reduced footprint and power consumption, as well as faster speeds, in the context of analog computing and image processing. While various image processing and optical computing functionalities have…

Highly segmented calorimeters represent a modern trend in experimental particle physics aimed at improving the energy resolution with the particle flow reconstruction. The widely used and cost-effective solution is the structure assembled…

Instrumentation and Detectors · Physics 2025-06-11 M. Chadeeva , A. Stifutkin

We report fabrication and characteristics of an organic monolayer based Metal Oxide Semiconductor (MOS) device. In place of SiO2 oxide layer in the MOS configuration, we used 1H, 1H, 2H, 2H- perfluorooctyl trichlorosilane (FOTS)…

Mesoscale and Nanoscale Physics · Physics 2014-09-24 Rosilin George , U. Satheesh , J. Cyril Robinson Azariah , D. Devaprakasam

The negative-U impurity stripes confining the edge channels of semiconductor quantum wells are shown to allow the effective cooling inside in the process of the spin-dependent transport. The aforesaid promotes also the creation of composite…

Mesoscale and Nanoscale Physics · Physics 2016-08-24 N. T. Bagraev , V. Yu. Grigoryev , L. E. Klyachkin , A. M. Malyarenko , V. A. Mashkov , V. V. Romanov

In this paper, an architecture designed for electrical measurement of the quality factor of MEMS resonators is proposed. An estimation of the measurement performance is made using PSPICE simulations taking into account the component's…

Other Computer Science · Computer Science 2008-02-27 H. Mathias , F. Parrain , J. -P. Gilles , S. Megherbi , M. Zhang , Ph. Coste , A. Dupret

Although spectrally selective materials play a key role in existing and emerging solar thermal technologies, temperature-related degradation currently limits their use to below 700C in vacuum, and even lower temperatures in air. Here we…

Mesoscale and Nanoscale Physics · Physics 2021-08-18 Zachary J. Berquist , Andrew J. Gayle , Neil P. Dasgupta , Andrej Lenert

Cavity opto-mechanics enabled radiation pressure (RP) driven oscillators shown in the past offer an all optical Radio Frequency (RF) source without the need for external electrical feedback. However these oscillators require external…

Optics · Physics 2011-11-21 Siddharth Tallur , Suresh Sridaran , Sunil A. Bhave

We experimentally demonstrate a Si spin metal-oxide-semiconductor field-effect transistor (MOSFET) that exhibits a high on/off ratio of source-drain current and spin signals at room temperature. The spin channel is non-degenerate n-type Si,…

Mesoscale and Nanoscale Physics · Physics 2015-10-23 Takayuki Tahara , Hayato Koike , Makoto Kameno , Yuichiro Ando , Kazuhito Tanaka , Shinji Miwa , Yoshishige Suzuki , Masashi Shiraishi

Neutral atoms can be trapped and manipulated with surface mounted microscopic current carrying and charged structures. We present a lithographic fabrication process for such atom chips based on evaporated metal films. The size limit of this…

Materials Science · Physics 2009-11-10 S. Groth , P. Krüger , S. Wildermuth , R. Folman , T. Fernholz , D. Mahalu , I. Bar-Joseph , J. Schmiedmayer

This work describes an innovative concept for the development of organized molecular systems thanks to the template effect of the pre-structured semi-conductive SmSi(111) interface. This substrate was selected because Sm deposition in the…

Lamb wave resonators (LWRs) operating at ultralow temperatures serve as promising acoustic platforms for implementing microwave-optical transduction and radio frequency (RF) front-ends in aerospace communications because of the exceptional…

Applied Physics · Physics 2025-10-14 Wenbing Jiang , Xuankai Xu , Jiazhen Pan , Hancong Sun , Yu Guo , Huabing Wang , Libing Zhou , Tao Wu

We developed a new front-end application specific integrated circuit (ASIC) for the upgrade of the Maia x-ray microprobe. The ASIC instruments 32 configurable front-end channels that perform either positive or negative charge amplification,…