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 8 of 8 for “"interferometric detection"”.
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Nonlinear interferometric vibrational imaging for applications in the study and diagnosis of breast cancer
… thesis describes the technology of Nonlinear Interferometric Vibrational Imaging (NIVI), a CARS-based technique that uses two engineered femtosecond optical pulses and interferometric detection to retrieve broadband Raman signatures free of background. The performance of this technique is …
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Study of propagation and detection methods of terahertz radiation for spectroscopy and imaging
… these factors on THz radiation propagation and detection is vital. This dissertation focuses on the various aspects like scattering, attenuation, frequency filtering and waveguide propagation of THz radiation and its subsequent application to a stand-off THz interferometric imager under …
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Ultrasound detection using singlemode optical fibers with applications to epoxy cure monitoring
… Herein, the mechanisms allowing the detection of ultrasound with optical fiber are presented. An analysis of optical fiber waveguides and optical fiber based interferometric detection methods is performed in detail. The interaction of radial strain fields, induced by longitudinal …
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Methods for optical microscopy beyond conventional limits
… to the illumination system, and no need for interferometric detection, is described. Work on modifying a total internal reflection SIM instrument into one capable of optical sectioning SIM is presented, with the suitability of the converted system for investigations into HSV-1 viral particle …
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FLY-EAR INSPIRED MINIATURE SENSOR SYSTEM FOR TWO-DIMENSIONAL SOUND SOURCE LOCALIZATION
… incorporated with a low coherence fiber optic interferometric detection system has suggested that the micro-scale fly-ear inspired sensor can achieve a much improved performance in terms of phase differences and directional sensitivities when compared to a similar sized microphone array …
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High Resolution Optical Tweezers for Biological Studies
… to study the biological molecule of interest. By interferometric detection methods, the resolution of optical tweezers can be in the picometer range on millisecond time scales. However, on a time scale of seconds—at which many biological reactions take place—instrumental noise such as thermal …
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Understanding and Mimicking the Fly's Directional Hearing: Modeling, Sensor Development, and Experimental Studies
… studied by using a low-coherence fiber optic interferometric detection system. With the large-scale sensor, the importance of using proper contribution from both rocking and bending modes is validated. The fly-ear sized sensor is demonstrated to achieve the dual optimality characteristic at 8 …
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Interferometric Scattering Microscopy: Theory, Simulation, and Experiment
… optical microscopy technique known as interferometric scattering (iSCAT), first demonstrated in the early 2000s. To establish the theoretical limits of nanoscale optical tracking, I derive theories of iSCAT imaging yielding fully quantitative predictions in good agreement with existing …