نتایج جستجو برای: mechanical coupling

تعداد نتایج: 382449  

2012
Oliver Sander Anton Schiela

We formulate the static mechanical coupling of a geometrically exact Cosserat rod to a nonlinearly elastic continuum. In this setting, appropriate coupling conditions have to connect a one-dimensional model with director variables to a three-dimensional model without directors. Two alternative coupling conditions are proposed, which correspond to two different configuration trace spaces. For bo...

Journal: :Physical review letters 2008
J Fransson Jian-Xin Zhu A V Balatsky

We consider a combined nanomechanical-supercondcuting device that allows the Cooper pair tunneling to interfere with the mechanical motion of the middle superconducting island. Coupling of mechanical oscillations of a superconducting island between two superconducting leads to the electronic tunneling generates a supercurrent that is modulated by the oscillatory motion of the island. This coupl...

Journal: :Optics express 2014
Christopher Baker William Hease Dac-Trung Nguyen Alessio Andronico Sara Ducci Giuseppe Leo Ivan Favero

We analyze the magnitude of the radiation pressure and electrostrictive stresses exerted by light confined inside GaAs semiconductor WGM optomechanical disk resonators, through analytical and numerical means, and find the electrostrictive stress to be of prime importance. We investigate the geometric and photoelastic optomechanical coupling resulting respectively from the deformation of the dis...

2012
Jasper Chan Amir H. Safavi-Naeini Oskar Painter Thomas J. Watson

We present the design of an optomechanical crystal nanobeam cavity that combines finite-element simulation with numerical optimization, and considers the optomechanical coupling arising from both moving dielectric boundaries and the photo-elastic effect. Applying this methodology results in a nanobeam with an experimentally realized intrinsic optical Q-factor of 1.2× 10, a mechanical frequency ...

Journal: :Nano letters 2015
P Weber H L Calvo J Bohle K Goß C Meyer M R Wegewijs C Stampfer

We report transport measurements on a quantum dot in a partly suspended carbon nanotube. Electrostatic tuning allows us to modify and even switch "on" and "off" the coupling to the quantized stretching vibration across several charge states. The magnetic-field dependence indicates that only the two-electron spin-triplet excited state couples to the mechanical motion, indicating mechanical coupl...

Journal: :Optics express 2010
M L Gorodetsky A Schliesser G Anetsberger S Deleglise T J Kippenberg

The strength of optomechanical interactions in a cavity optomechanical system can be quantified by a vacuum coupling rate g0 analogous to cavity quantum electrodynamics. This single figure of merit removes the ambiguity in the frequently quoted coupling parameter defining the frequency shift for a given mechanical displacement, and the effective mass of the mechanical mode. Here we demonstrate ...

2013
Joerg Bochmann Amit Vainsencher David D. Awschalom Andrew N. Cleland

A variety of nanomechanical systems can now operate at the quantum limit1–4, making quantum phenomena more accessible for applications and providing new opportunities for exploring the fundamentals of quantum physics. Such mechanical quantum devices offer compelling opportunities for quantum-enhanced sensing and quantum information5–7. Furthermore, mechanical modes provide a versatile quantum b...

2004
Ronald H.W. Hoppe Yuri Iliash Siegfried Ramminger Gerhard Wachutka

In this contribution, we are concerned with electrothermomechanical coupling problems as they arise in the modeling and simulation of high power electronic devices. In particular, we are faced with a hierarchy of coupled physical effects in so far as electrical energy is converted to Joule heat causing heat stresses that have an impact on the mechanical behavior of the devices and may lead to m...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید