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 20 of 72 for “"Michelson"”.
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MICA optical : a low-cost, educational Michelson interferometer
… the development of a MICA optical project, the Michelson interferometer. In this classic experiment, by correctly assembling and aligning the optical components, two different interference patterns can be obtained and observed. Other potential experiments include the measurement of light …
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Noise analysis of a suspended high power Michelson interferometer
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1997.
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High-Temperature Displacement Sensor Using a White-Light Scanning Fiber Michelson Interferometer
… The primary development of a white-light Michelson interferometer that utilizes a sapphire fiber sensing head is presented in this thesis. Development includes efforts to combat the poor optical quality of the sapphire fiber, minimize polarization mode fading, and preferentially excite the …
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Creation and Experimental Validation of a Numerical Model of a Michelson Interferometer
… budget. The visibility of fringes produced by a Michelson interferometer is known to be sensitive to the degree to which the incident light beam is monochromatic. Therefore, the Michelson interferometer has significant potential as a tool for quantifying the degree of temporal coherence of a …
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A far-infrared Michelson interferometer and its application to the study of photoconductivity in ultra-pure germanium
Contains fulltext : mmubn000001_026603683.pdf (Publisher’s version ) (Open Access)
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Fiber-Optic Michelson Interferometer with Faraday Mirrors for Acoustic Sensing using a 3 × 3 Coupler and Symmetric Demodulation Scheme
… acoustic sensor is presented utilizing the Michelson interferometer configuration with Faraday mirrors to eliminate po- larization fading. A 3 × 3 coupler is used as the beamsplitting component, and a symmetric demodulation algorithm is applied to recover the phase signal. This sensor has a …
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Characterization of Mechanical Properties at the Micro/Nano Scale: Stiction Failure of MEMS, High-Frequency Michelson Interferometry and Carbon NanoFibers
… Furthermore, the description of a high-frequency Michelson Interferometer is discussed for imaging of crack propagation of the μcantilevers with their substrate at the nano-scale and harmonic imaging of MEMS/NEMS. Van der Waals forces are also responsible for the adhesion in nonwoven carbon …
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Temperature insensitive fiber optic interferometer and applications
… to produce a relatively temperature insensitive Michelson interferometer is presented. The modification was accomplished by cleaving the coupler after the minimum taper region and polishing, perpendicular to the endface, to a point just short of the interaction region. This allows one of the two …
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Semantics of low-level languages
… models of the languages discussed: x86 and Tezos Michelson. We extend an existing formalization of x86 to include its most common format - executable binaries by implementing an instruction decoder. We start completely from scratch with another: Tezos’ Michelson. We produce executable models …
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Quantum limited optical phase detection in a high power suspended interferometer
… the antennas are configured as recycled Michelson Interferometers with Fabry-Perot cavities in the Michelson arms. One of the fundamental limits associated with an instrument of this type is the ability to detect differential phase shifts between the beams returning to the beamsplitter …
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Phase stabilization of laser beams in a cold atom accelerometer
… serious source of error. In this thesis, a Michelson optical interferometer and an optical feedback loop were used to stabilize the relative phase of the interrogation laser beams in a cold atom accelerometer. A digital controller stabilized the relative phase via an electro-optic phase …
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A multi-mode spectrometer for atomic emission spectrometry
… been developed. The MMS integrates a scanning Michelson interferometer, a flat-field grating, and a linear photodiode array detector into a single spectrometer system. With these components, the MMS is capable of applying dispersive, interferometric, or combined dispersive/interferometric …
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Characterisation of micromechanical materials and MEMS structures using optically generated ultrasound
… vibrometer or a custom built large bandwidth Michelson interferometer. An investigation has been conducted on the optical conversion efficiency into Lamb waves. Lamb wave amplitudes were measured on a silicon wafer and a variety of thin films on silicon wafers. This was to determine how …
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Low coherence fibre interferometry with a multi-wavelength light source
… as sensing interferometer and a reflection-type Michelson as receiver interferometer. The background on the choice of an optimised signal processing scheme and data processing algorithms is given. Predictions were made during this work regarding the achievable measurement resolution and speed, …
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Optical detection development for the Hogan quantum holographic noise experiment
… searching for the noise in two coaligned Michelson interferometers. We have assembled and tested a photodetection system to measure broadband phase correlation between two optical signals, to be used in the noise detection experiment. This included modifying and characterizing …
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Investigation of spacecraft cluster autonomy through an acoustic imaging interferometric testbed
… Imaging Testbed's simplest function is that of a Michelson interferometer. Robot arms control the motion of microphones. Through successive measurements an acoustic image can be formed. On top of this functionality, a layered software architecture is developed. This software creates a virtual …
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Optical coherence tomography applied to investigations of optical properties of paintings
… Coherence Tomography (OCT), a fast 3D scanning Michelson interferometer normally applied to biomedical applications has recently been applied to art related subjects. In this thesis, the various applications of OCT to the non invasive imaging of paintings are explored in detail. The spectral …
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A liquid-in-glass thermometer with sub-microKelvin resolution, and its application for calorimetry
… in which the meniscus level was read by a Michelson interferometer. Contact angle hysteresis was limited by a wetting film and the low meniscus velocity. The sub-microKelvin resolution achieved was the lowest known for any thermometer above cryogenic temperatures. The thermometer was …
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Digital frequency demodulation for a laser vibrometer
… of a digital frequency demodulator applied to a Michelson interferometer-based scanning laser vibrometer. The laser vibrometer is a velocity transducer that produces frequency-modulated signals that have traditionally been optically or electronically frequency shifted from baseband to an …
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Design and fabrication of a hi-fidelity free space optical Grover multiport for sensing applications
… as well as the recreation of the Grover-Michelson interferometer.
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