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Large-angle scattered light measurements for quantum-noise filter cavity design studies
Large-angle scattered light measurements quantum-noise filter cavity design studies Optics
2012/4/24
Optical loss from scattered light could limit the performance of quantum-noise filter cavities being considered for an upgrade to the Advanced LIGO gravitational-wave detectors. This paper describes i...
Design of an optical reference cavity with low thermal noise and flexible thermal expansion properties
optical reference cavity low thermal noise flexible thermal expansion properties Optics
2012/4/19
An ultrastable optical reference cavity with re-entrant fused silica mirrors and a ULE spacer structure is designed through finite element analysis. The designed cavity has a low thermal noise limit o...
Offset frequency dynamics and phase noise properties of a self-referenced 10 GHz Ti:sapphire frequency comb
Offset frequency dynamics phase noise properties self-referenced 10 GHz sapphire frequency comb
2011/8/11
Abstract: This paper shows the experimental details of the stabilization scheme that allows full control of the repetition rate and the carrier-envelope offset frequency of a 10 GHz frequency comb bas...
Negative Backaction Noise in Interferometric Detection of a Microlever
Negative Backaction Noise Interferometric Detection Microlever
2011/8/11
Abstract: Interferometric detection of mirror displacements is intrinsically limited by laser shot noise. In practice, however, it is often limited by thermal noise. Here we report on an experiment pe...
Low phase noise diode laser oscillator for 1S-2S spectroscopy in atomic hydrogen
Low phase noise diode laser oscillator 1S-2S spectroscopy atomic hydrogen
2011/8/16
Abstract: We report on a low-noise diode laser oscillator at 972 nm actively stabilized to an ultra-stable vibrationally- and thermally compensated reference cavity. To increase the fraction of laser ...
An Optical Fibre Pulse Rate Multiplier for Ultra-low Phase-noise Signal Generation
Optical Fibre Ultra-low Phase-noise Signal
2011/9/6
In this letter we report on an all optical-fibre approach to the synthesis of ultra-low noise microwave signals by photodetection of femtosecond laser pulses. We use a cascade of Mach-Zehnder fibre in...
Observation of slow light in the noise spectrum of a vertical external cavity surface emitting laser
Observation slow light noise spectrum emitting laser
2010/11/11
The role of coherent population oscillations is evidenced in the noise spectrum of an ultra-low noise lasers. This effect is isolated in the intensity noise spectrum of an optimized single-frequency v...
Cavity-enhanced atom detection with cooperative noise reduction
Cavity-enhanced atom detection cooperative noise reduction
2010/10/20
An optical microcavity with small mode radius is used to measure the local density of a cold
atom cloud. Atom densities below 1 per cavity mode volume are measured with signals near the
photon shot-...
Determination of the vacuum optomechanical coupling rate using frequency noise calibration
Determination vacuum optomechanical coupling frequency noise calibration
2010/10/20
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 re...
Electrochemical Noise Analysis and Electrochemical Impedance Spectroscopy for Pure Copper in Chloride Media
impedance noise analysis copper chloride media
2007/12/19
摘要 The corrosion behavior of pure copper electrode exposed to artificial seawater has been studied using electrochemical noise analysis (ENA) and electrochemical impedance spectroscopy (EIS). A diffus...
This is a theory for the effect of localization on the super-Poissonian noise of radiation propagating through an absorbing disordered waveguide. Localization suppresses both the mean photon current &...