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 6 of 6 for “"Waveplate"”.
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Voltage programmable liquid optical devices
… device. The first is a rotatable liquid crystal waveplate and the second is an amplitude programmable liquid phase grating. The rotatable waveplate was created by confining a droplet of E7 nematic liquid crystal between two glass substrates in a photolithographically produced square well of …
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Plasmonic devices based on transparent conducting oxides for near infrared applications
… such as plasmonic resonator for bio-sensing and waveplate metasurfaces. In addition, we study the impact of TCOs to local antenna as epsilon-near-zero (ENZ) substrate. The technological importance of the IR range is apparent and growing, and as plasmonics develops a niche at these frequencies, I …
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Development of a High Repetition Rate, Electro-optically Q-switched Ho:YAG Laser
… the addition of an RTP Pockels cell, a quarter-waveplate, and a Brewster’s angled ZnSe window. The system was able to operate over a range of repetition rates between 8 and 11 kHz, and up to an average output power of 12.75 W at a slope efficiency of ~42.5%. The inclusion of the Q-switching …
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Nonlinear Light - Matter Interactions of Ultrafast High Intensity Laser Pulses
… intensities, the material will act similar to a waveplate and can create multiple phase rotations in a probing beam. This effect can be studied by looking at the oscillatory structure it forms in a Kerr Gate. The oscillatory structure reported here has never been reported in CS<sub>2 </sub>and is …
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High-power fibre lasers
… a simple set of optic elements such as a l/2 waveplate, a polarizing beam-splitter and a bulk grating, we investigated the polarization characteristics of an Yb3+ fibre laser, from which we obtained 6.5 W of single polarization tunable output in the range of 1070 to 1106 nm. As a free running …
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Design and application of near infrared tunable filter for ATST and NST
… Solar Telescope (NST), the design of achromatic waveplates, the narrowband continuum observation of a Sunspot at 1.56 um using IRIM instruments, and the coronal hole observation using the Digital Vector Magnetograph (VMG) at Big Bear Solar Observatory (BBSO). A near infrared tunable filter system …