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We employ a lattice Boltzmann method to compute the acoustic radiation force produced by standing waves on a compressible object. Instead of simulating the fluid mechanics equations directly, the proposed method uses a lattice Boltzmann…

Fluid Dynamics · Physics 2024-08-15 E. Castro-Avila , P. Malgaretti , J. Harting , J. D. Muñoz

Using optical tweezers and a haptic device, microspheres having diameters ranging from 3 to 4 um (floating in a fluid solution) are manipulated in order to form patterns of coupled optical microresonators by assembling the spheres via…

Optics · Physics 2007-07-24 Ibrahim Bukusoglu , Cagatay Basdogan , Alper Kiraz , Adnan Kurt

We observe direct mechanical mixing in nanoelectromechanical transistors fabricated in semiconductor materials operating in the radio frequency band of 10-1000 MHz. The device is made of a mechanically flexible pillar with a length of 240…

Mesoscale and Nanoscale Physics · Physics 2007-10-17 Hyun S. Kim , Hua Qin , Robert H. Blick

Here, we describe a simple and unique architecture of a microfluidic mixer that can mix two streams (Water and Fluorescein Isothiocyanate (FITC) buffer) with 30% efficiency. The overall mixing in this design is dominated by 1D diffusion,…

Medical Physics · Physics 2024-02-26 M. Rashed Khan , Taliman Afroz , Caleb Shaw

Conjugated polymer fibers can be used to manufacture various soft fibrous optoelectronic devices, significantly advancing wearable devices and smart textiles. Recently, conjugated polymer-based fibrous electronic devices have been widely…

The smart integrated systems of tomorrow would demand a combination of micromechanical components and traditional electronics. On-chip solutions will be the ultimate goal. One way of making such systems is to implement the mechanical parts…

Other Computer Science · Computer Science 2008-02-22 O. Soeraasen , J. E. Ramstad

We present an optomechanical device platform for characterization of optical, thermal, and rheological properties of fluids on the micron scale. A suspended silicon microdisk resonator with a vibrating mass of 100 fg and an effective…

High coherence visible and near-visible laser sources are centrally important to the operation of advanced position/navigation/timing systems as well as classical/quantum sensing systems. However, the complexity and size of these bench-top…

Frequency multiplication involves generating harmonics from an input frequency, a technique particularly useful for integrating spin-wave devices operating at different frequencies. While topological magnetic textures offer distinct…

Mesoscale and Nanoscale Physics · Physics 2024-12-19 Cheng-Jie Wang , Yuxin Li , Zhe Ding , Pengfei Wang , Fazhan Shi , Jiangfeng Du

We demonstrate electromechanical coupling between a superfluid mechanical mode and a microwave mode formed by a patterned microfluidic chip and a 3D cavity. The electric field of the chip-cavity microwave resonator can be used to both drive…

Superconductivity · Physics 2023-07-06 Sebastian Spence , Emil Varga , Clinton A. Potts , John P. Davis

Electroactive-Polymers (EAPs) are one of the best soft materials with great applications in active microfluidics. Ionic ones (i-EAPs) have more promising features for being appropriate candidates to use in active microfluidic devices. Here,…

Quantitative Methods · Quantitative Biology 2019-10-10 Mohsen Annabestani , Sina Azizmohseni , Pouria Esmaeili-Dokht , Nahal Bagheri , Afarin Aghassizadeh and , Mahdi Fardmanesh

A frequency mixer is a nonlinear device that combines electromagnetic waves to create waves at new frequencies. Mixers are ubiquitous components in modern radio-frequency technology and are widely used in microwave signal processing. The…

The lack of high power integrated lasers have been limiting silicon photonics. Despite much progress made in chip-scale laser integration, power remains below the level required for key applications. The main inhibiting factor for high…

The interaction of a gravitational wave with a system made of an RLC circuit forming one end of a mechanical harmonic oscillator is investigated. We show that, in some configurations, the coherent interaction of the wave with both the…

General Relativity and Quantum Cosmology · Physics 2009-10-28 Enrico Montanari , Pierluigi Fortini

A simulation of an atomic force microscope operating in the constant amplitude dynamic mode is described. The implementation mimics the electronics of a real setup including a digital phase-locked loop (PLL). The PLL is not only used as a…

Atomic and Molecular Clusters · Physics 2007-05-23 Laurent Nony , Alexis Prof. Baratoff , Dominique Schaer , Oliver Pfeiffer , Adrian Wezel , Ernst Meyer

We demonstrate strong coupling between the flexural vibration modes of a clamped-clamped micromechanical resonator vibrating at low amplitudes. This coupling enables the direct measurement of the frequency response via amplitude- and phase…

Mesoscale and Nanoscale Physics · Physics 2013-03-26 W. J. Venstra , R. van Leeuwen , H. S. J. van der Zant

We demonstrate an eight-channel reconfigurable optical filter on a silicon chip consisting of cascaded microring resonators and integrated compact heaters. With an embedded Mach-Zehnder (MZ) arm coupling to a microring resonator, the…

Renaissance Fusion proposes thick liquid metal walls as plasma-facing components for future commercial fusion reactors. It designs and operates proof-of-concept experiments aiming at actively suspending and stabilizing a flowing…

Fluid Dynamics · Physics 2024-12-19 Valentina Giovacchini , Eric Favre , Francesco A. Volpe

A room-temperature mid-infrared (9 um) heterodyne system based on high-performance unipolar optoelectronic devices is presented. The local oscillator (LO) is a quantum cascade laser, while the receiver is an antenna coupled quantum well…

We have implemented a control system for experiments in atomic, molecular and optical physics based on a commercial low-cost board, featuring a field-programmable gate array as part of a system-on-a-chip on which a Linux operating system is…

Atomic Physics · Physics 2021-10-20 Andreas Trenkwalder , Matteo Zaccanti , Nicola Poli
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