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 9 of 9 for “"Micromirrors"”.
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Applications of programmable MEMS micromirrors in laser systems
… offset comb-drive (AVC) actuated scanning micromirrors, and their use as intracavity active Q-switch elements in solid-state laser systems, are investigated. The AVC scanning micromirrors are created through a multi-user fabrication process, with theoretical and experimental investigations …
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Optical cooling using the dipole force
… energies of either atoms and molecules, or micromirrors. In the literature, these two strands are kept largely separate; both, however suffer from severe limitations. Laser cooling of atoms and molecules largely relies on the internal level structure of the species being cooled. As a result, …
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One-Dimensional MEMS Optical Phased Array Systems Based on Surface Micro-Machined Silicon Mirrors for Scanning LiDAR Applications
… OPA device utilizes an array of piston-type micromirrors which act as optical phase shifters. Each metal coated polysilicon micromirror is suspended by a pair of serpentine springs and is individually actuated at low voltage by a separate electrostatic parallel plate actuator. The field of …
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Adaptation of Nontraditional Control Techniques to Nonlinear Micro and Macro Mechanical Systems
… and analyze the nonlinear dynamics of torsional micromirrors subjected to combined DC and resonant AC excitations. The analysis is aimed at enhancing the performance of micromirrors used for scanning applications by providing better insight into the effects of system parameters on the …
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Design and fabrication of one and two axis nickel electroplated micromirror array
… distribution. The realization of fabrication of micromirrors was discussed. The micromirror fabrication process can be performed by surface micromachining technologies with a thick photoresist sacrificial layer. The torsion beams were designed with a serpentine shape in order to optimize the …
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Strain-tuning of periodic optical devices : tunable gratings and photonic crystals
… and nano-scale optical devices has heralded micromirrors, semiconductor micro- and nano-lasers, and photonic crystals, among many. Broadly defined with the field of microphotonics and microelectromechanical systems, these innovations have targeted applications in integrated photonic chips and …
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Liquid Crystal Optics For Communications, Signal Processing And 3-d Microscopic Imaging
… microelectromechanical systems (MEMS) digital micromirrors have been used to implement the OADF. Several key systems issues such as insertion loss, polarization dependent loss, wavelength resolution and response time are analyzed in detail for comparison with the LC deflector approach. A …
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Microelectromechanical handheld laser-scanning confocal microscope: application to breast cancer imaging
Demographic data indicate that 60% of 6.7 million annual global cancer mortalities and 54% of 10.8 million new patients are in developing nations, unable or unwilling to avail of invasive screening tests that are the current norm. For most cancers, survival rate is strongly dependent on early …