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High-frequency atomic force microscopy has enabled extraordinary new science through large bandwidth, high speed measurements of atomic and molecular structures. However, traditional optical detection schemes restrict the dimensions, and…

Mesoscale and Nanoscale Physics · Physics 2014-03-11 C. Doolin , P. H. Kim , B. D. Hauer , A. J. R MacDonald , J. P Davis

Interfacing electronics with optical fiber networks is key to the long-distance transfer of classical and quantum information. Piezo-optomechanical transducers enable such interfaces by using GHz-frequency acoustic vibrations as mediators…

Optics · Physics 2022-10-26 Han Zhao , Alkim Bozkurt , Mohammad Mirhosseini

The intracavity power, and hence sensitivity, of optomechanical sensors is commonly limited by parametric instability. Here we characterize the parametric instability induced sensitivity degradation in a micron scale cavity optomechanical…

Quantum Physics · Physics 2015-05-30 Glen I. Harris , Ulrik L. Andersen , Joachim Knittel , Warwick P. Bowen

The guided modes of sub-wavelength diameter air-clad optical fibers exhibit a pronounced evanescent field. The absorption of particles on the fiber surface is therefore readily detected via the fiber transmission. We show that the resulting…

Soft Condensed Matter · Physics 2009-11-13 F. Warken , E. Vetsch , D. Meschede , M. Sokolowski , A. Rauschenbeutel

Recent breakthroughs in cryogenic silicon detector technology allow for the observation of single electron-hole pairs released via particle interactions within the target material. This implies sensitivity to energy depositions as low as…

Currently, optical- or mechanical-resonances are commonly used in microfluidic research. However, optomechanical oscillations by light pressure were not shown with liquids. This is because replacing the surrounding air with water inherently…

We describe an approach to optically trapping small, chemically stable molecules at cryogenic temperatures by buffer-gas loading a deep optical dipole trap. The ~10 K trap depth will be produced by a tightly-focused, 1064-nm cavity capable…

The adsorption of lysozyme, cytochrome c and myoglobin, similar-sized globular proteins of approximately 1.5 nm radius, into the mesoporous silica material Santa Barbara Amorphous-15 (SBA-15) with 3.3 nm mean pore radius has been studied…

Soft Condensed Matter · Physics 2015-12-15 Sebastian T. Moerz , Patrick Huber

Particles with electric charge 10^(-12)e in bulk mass are not excluded by present experiments. In the present letter we provide a feasible scheme to measure the millicharged particles via the optical cavity coupled to a levitated…

High Energy Physics - Experiment · Physics 2017-10-11 Jian Liu , Ka-Di Zhu

Attosecond science has demonstrated that electrons can be controlled on the sub-cycle time scale of an optical wave, paving the way toward optical frequency electronics. Using controlled few-cycle optical waveforms, the study of sub-cycle…

Atomic superfluids formed using Bose-Einstein condensates (BECs) in a ring trap are currently being investigated in the context of superfluid hydrodynamics, quantum sensing and matter-wave interferometry. The characterization of the…

Quantum Physics · Physics 2024-11-21 Rahul Gupta , Pardeep Kumar , Rina Kanamoto , M. Bhattacharya , Himadri Shekhar Dhar

In this paper, picosecond laser inscription of segmented waveguides in crystalline silicon based on a deterministic single-pulse modification process is demonstrated.Pulses of 43 ps duration at 1.55 ${\mu}$m wavelength are used to…

A beam monitor detector prototype based on doped silica fibres coupled to optical fibres has been designed, constructed and tested, mainly for accelerators used in medical applications. Scintillation light produced by Ce and Sb doped silica…

Instrumentation and Detectors · Physics 2015-05-30 S. Braccini , A. Ereditato , F. Giacoppo , I. Kreslo , K. P. Nesteruk , M. Nirkko , M. Weber , P. Scampoli , M. Neff , S. Pilz , V. Romano

The optical lever is a precision displacement sensor with broad applications. In principle, it can track the motion of a mechanical oscillator with added noise at the Standard Quantum Limit (SQL); however, demonstrating this performance…

Quantum Physics · Physics 2025-08-28 Christian M. Pluchar , Aman R. Agrawal , Dalziel J. Wilson

Bending-mode vibrations of carbon nanotube resonator devices were mechanically detected in air at atmospheric pressure by means of a novel scanning force microscopy method. The fundamental and higher order bending eigenmodes were imaged at…

Mesoscale and Nanoscale Physics · Physics 2012-07-12 D. Garcia-Sanchez , A. San Paulo , M. J. Esplandiu , F. Perez-Murano , L. Forro , A. Aguasca , A. Bachtold

Optomechanical transduction harnesses the interaction between optical fields and mechanical motion to achieve sensitive measurement of weak mechanical quantities with inherently low noise. Lithium niobate combines low optical loss, strong…

We report here Atacama Large Millimeter/submillimeter Array (ALMA) N$_2$H$^+$ (1-0) images of the Orion Molecular Cloud 2 and 3 (OMC-2/3) with high angular resolution (3'' or 1200 au) and high spatial dynamic range. Combining dataset from…

Astrophysics of Galaxies · Physics 2021-02-10 Nannan Yue , Di Li , Qizhou Zhang , Lei Zhu , Jonathan Henshaw , Diego Mardones , Zhiyuan Ren

We employ heterodyne interferometry to investigate the effect of a single organic molecule on the phase of a propagating laser beam. We report on the first phase-contrast images of individual molecules and demonstrate a single-molecule…

Quantum Physics · Physics 2015-05-27 M. Pototschnig , Y. Chassagneux , J. Hwang , G. Zumofen , A. Renn , V. Sandoghdar

We report on the discovery of broad Balmer absorption lines variability in the QSO SDSS J125942.80+121312.6, based on the optical and near-infrared spectra taken from the SDSS-I, SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS), and…

Astrophysics of Galaxies · Physics 2016-03-16 Xiheng Shi , Hongyan Zhou , Xinwen Shu , Shaohua Zhang , Tuo Ji , Xiang Pan , Luming Sun , Wen Zhao , Lei Hao

Solitons are self-sustained wavepackets that occur in many physical systems. Their recent demonstration in optical microresonators has provided a new platform for study of nonlinear optical physics with practical implications for…

Optics · Physics 2018-10-24 Xu Yi , Qi-Fan Yang , Ki Youl Yang , Kerry Vahala
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