Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"squeezed light"”.
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Generation and application of squeezed light
… some aspects of future applications of squeezed states. Subsequent to an introductory part summarizing a few basic notions and facts related to squeezing, a detailed study of the generation of squeezed light and its effects in two different quantum optical systems is presented. Firstly a …
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Generation of squeezed light via second harmonic generation
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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Squeezed light sources for current and future interferometric gravitational-wave detectors
… to reduce quantum noise is to inject audio- band squeezed vacuum states into the detection port. This technique has been demonstrated on the initial LIGO and GEO600 detectors. A squeezed light source for aLIGO must meet stringent requirements in terms of optical loss, phase noise, and scattered …
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Squeezed light sources for current and future interferometric gravitational-wave detectors
… to reduce quantum noise is to inject audio- band squeezed vacuum states into the detection port. This technique has been demonstrated on the initial LIGO and GEO600 detectors. A squeezed light source for aLIGO must meet stringent requirements in terms of optical loss, phase noise, and scattered …
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High efficiency photodetection below the quantum noise limit
… to form a balanced homodyne detector to detect squeezed light. The detectors have quantum efficiencies of 85% and 90%, a bandwidth of 1MHz, and a dark noise of ... at 1MHz.
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Two-state systems with non-Markovian thermal and squeezed quantum noise inputs
… the two-level atom subject to finite bandwidth squeezed noise. Our approach to these problems is based on the adjoint equation, which describes the evolution of a quantum stochastic density operator. This equation is amenable to solution by ordinary stochastic methods, of which numerical …
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Applications of long storage time optical cavities
… is necessary for producing frequency-dependent squeezed states of light to improve the sensitivity over their broad audioband frequency [1]. To test the feasibility of quantum noise filter cavities for GW detectors, we characterized the optical loss of state-of-the-art mirrors using a 2 m long …
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Quantum state reconstruction and tomography using phase-sensitive light detection
… to perform non-demolition homodyne detection of squeezed light in a high-finesse cavity QED setup with an ensemble of Cesium atoms coupled to the cavity. After quantifying sources of noise, the photodiode efficiency, we perform a series of measurements of low photon number coherent states and …
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Broadband Squeezed Microwaves and Amplification with a Josephson Traveling-Wave Parametric Amplifier
Squeezed light enables precision measurement beyond the standard quantum limit imposed by the Heisenberg uncertainty principle. It has been widely adopted in research fields to achieve scientific breakthroughs from gravitational wave detection to biological microscopy enhancement. The generation of …
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Wavefront modelling and sensing for advanced gravitational wave detectors
… Michelson (DRFPMI) configuration with quantum squeezed light injected to reduce vacuum noise. Future plans to improve the sensitivity further rely on increasing the circulating laser power and improving the efficiency of quantum squeezing. Squeezing efficiency is drastically reduced by optical …
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The search for unmodeled gravitational-wave transients in the Advanced LIGO-Virgo Era
… improvements to the Advanced Detectors, such as squeezed-light injection, will impact the science done with GW transients.
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Classical and quantum nonlinear optics in confined photonic structures
… soliton breakup in photonic crystal fibres and squeezed state generation in three dimensional photonic crystal microcavities are investigated. In both cases, the properties of periodically patterned, high-index contrast dielectric structures are engineered to control the dispersion and local …
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Quantum nonlinear optics: applications to quantum metrology, imaging, and information
… rise to a variety of nonclassical states of light that have been proven to surpass certain limitations set by classical physics. Namely, certain squeezed and entangled states have been shown to beat the shot-noise limit when making precision phase measurements in interferometry, as well as …
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Modelling and Exploiting the Hyperfine Structure of Alkali Atoms for Generation of Nonclassical Light and Rydberg-Atom-Based Field Sensing
… explores interac- tions between alkali atoms and light, to uncover ways of exploiting their properties for a variety of purposes. The main results of the thesis are divided into three main parts, as we detail below. Firstly, we develop theoretical models of effective interactions between alkali …
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Squeezing the Quantum Noise of LIGO below the Standard Quantum Limit
… black holes located 410 megaparsecs (1.3 billion light-years) away. Their merger unleashed an immense amount of energy, with the peak emission rate surpassing the combined power of all luminous stars in the observable universe. Unlike stars, the merger of two black holes does not emit …