scholarly journals Determination of the vacuum optomechanical coupling rate using frequency noise calibration

2010 ◽  
Vol 18 (22) ◽  
pp. 23236 ◽  
Author(s):  
M. L. Gorodetsky ◽  
A. Schliesser ◽  
G. Anetsberger ◽  
S. Deleglise ◽  
T. J. Kippenberg
Keyword(s):  
Frequency Noise ◽  
Coupling Rate ◽  
Optomechanical Coupling

scholarly journals Absolute Determination of the Single-Photon Optomechanical Coupling Rate via a Hopf Bifurcation

2021 ◽  
Vol 15 (3) ◽  
Author(s):  
Paolo Piergentili ◽  
Wenlin Li ◽  
Riccardo Natali ◽  
David Vitali ◽  
Giovanni Di Giuseppe
Keyword(s):  
Hopf Bifurcation ◽  
Single Photon ◽  
Absolute Determination ◽  
Coupling Rate ◽  
Optomechanical Coupling

scholarly journals The determination of Schumann resonance mode frequencies using iterative procedure of complex demodulation

2013 ◽  
Vol 43 (4) ◽  
pp. 305-326 ◽  
Author(s):  
Adriena Ondrášková ◽  
Sebastian Ševčík
Keyword(s):  
Low Frequency ◽  
Peak Frequency ◽  
Precise Determination ◽  
Primary Sources ◽  
Frequency Noise ◽  
Schumann Resonance ◽  
Complex Demodulation ◽  
Vertical Electric Field ◽  
Short Signal

Abstract The more precise determination of instantaneous peak frequency of Schumann resonance (SR) modes, especially based on relatively short signal sequences, seems to be important for detailed analysis of SR modal frequencies variations. Contrary to commonly used method of obtaining modal frequencies by Lorentzian fitting of DFT spectra, the attempt was made to employ the complex demodulation method in iterated form. The results for SR signals contaminated with low-frequency noise and hum in various degree as well as the comparison with standard method are presented. Real signals of vertical electric field component picked up at the Astronomical and Geophysical Observatory of Comenius University at Modra, Slovakia, were the primary sources.

Design and Fabrication of Optomechanical Crystal Nanobeam Cavity with High Optomechanical Coupling Rate

CLEO: 2014 ◽  
2014 ◽  
Author(s):  
Yongzhuo Li ◽  
Kaiyu Cui ◽  
Xue Feng ◽  
Yidong Huang ◽  
Zhilei Huang ◽  
...  
Keyword(s):  
Coupling Rate ◽  
Optomechanical Coupling

Required Data Collection Times for Steady and Quasi-steady Experiments

2017 ◽  
Author(s):  
Robert F. Roddy ◽  
David E. Hess
Keyword(s):  
High Frequency ◽  
Low Frequency ◽  
Frequency Noise ◽  
Surface Ship ◽  
System A ◽  
Low Pass ◽  
Collection Period ◽  
Almost All ◽  
Low Pass Filters

One of the requirements in performing steady or quasi-steady experiments is the determination of adequate collection times so that the data will not be biased due to low frequency energy in the data stream. Since virtually all steady experiments run at DTMB have low pass filters in line with the signal conditioning, high frequency noise is not a consideration in determining the required collection times. At both EMB and DTMB almost all of the surface ship drag measurements were made using gravity type balances until about 1970. These balances used both springs and dampers to modify the natural frequency of the system so that a good average model drag could be determined in a 5-6 sec collection period. Submarine model experiments began using block gages to measure drag beginning in the late 1950's. For these experiments crude methods were used to damp the output data but, to the author’s knowledge, no methods were ever put into place that was analogous to the springs and damper system. A method for determining the required collection times for any steady or quasi-steady experiment is presented along with sample cases showing the necessity for, and the utility of, using such a method.

A Stretched-rod Nanobeam Cavity with High Optomechanical Coupling Rate

2013 ◽  
Author(s):  
Zhilei Huang ◽  
Kaiyu Cui ◽  
Yongzhuo Li ◽  
Shichao Chen ◽  
Xue Feng ◽  
...  
Keyword(s):  
Coupling Rate ◽  
Optomechanical Coupling

A Stretched-rod Nanobeam Cavity with High Optomechanical Coupling Rate

2013 ◽  
Author(s):  
Zhilei Huang ◽  
Kaiyu Cui ◽  
Yongzhuo Li ◽  
Shichao Chen ◽  
Xue Feng ◽  
...  
Keyword(s):  
Coupling Rate ◽  
Optomechanical Coupling
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