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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 1261 to 1270 of 13963 (0.05 seconds)| 1261 |
Surface Plasmon Polariton Based Polarization Modulators Using Metal-polymer WaveguidesLiao, Xinqing 21 March 2012 (has links)
A tunable polarization modulator based on the periodic metal strips embedded in a polymer waveguide is presented. The periodic metallic structure is analyzed by Finite Element simulation (COMSOL). The calculation results show that the giant birefringence is formed by the selective cut-off of TE polarization over TM polarization, which makes it possible to design an efficient polarization modulator with a short conversion length. The metallic strips are made by using four-layer lift-off fabrication technology. The transmission and group indices of TE and TM modes are measured. However, it is observed that TE and TM modes cut off at same time, which does not agree with our predictions. The reason for failure is that the change in refractive indices is different from what we expected, which makes the device perform in opposite way. Finally, further suggestions are provided to modify the design so that the device can achieve its expected function.
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| 1262 |
Surface Plasmon Polariton Based Polarization Modulators Using Metal-polymer WaveguidesLiao, Xinqing 21 March 2012 (has links)
A tunable polarization modulator based on the periodic metal strips embedded in a polymer waveguide is presented. The periodic metallic structure is analyzed by Finite Element simulation (COMSOL). The calculation results show that the giant birefringence is formed by the selective cut-off of TE polarization over TM polarization, which makes it possible to design an efficient polarization modulator with a short conversion length. The metallic strips are made by using four-layer lift-off fabrication technology. The transmission and group indices of TE and TM modes are measured. However, it is observed that TE and TM modes cut off at same time, which does not agree with our predictions. The reason for failure is that the change in refractive indices is different from what we expected, which makes the device perform in opposite way. Finally, further suggestions are provided to modify the design so that the device can achieve its expected function.
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| 1263 |
Enzymatic activity, in desizing textiles, as influenced by biodegradability and molecular structure of companion surfactantsAdams, Morgan Douglas January 1969 (has links)
No description available.
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| 1264 |
Factors influencing fabric soil release and soil redeposition.Wiley, James William 12 1900 (has links)
No description available.
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| 1265 |
Surfactant enhanced electro-osmotic dewatering of mineral ultrafinesGrant, Christine Sharon 12 1900 (has links)
No description available.
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| 1266 |
Temporal design for core-based systems : a formal approachShen, Lan 12 1900 (has links)
No description available.
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| 1267 |
Shear horizontal surface acoustic wavesBright, Victor M. 05 1900 (has links)
No description available.
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| 1268 |
Surface acoustic wave propagation in multilayered and multichannel waveguide structuresKim, Yoonkee 05 1900 (has links)
No description available.
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| 1269 |
Design, fabrication, and characterization of an Acoustically-induced Distributed Bragg Reflector (ADBR)Irby, John Houston, IV 08 1900 (has links)
No description available.
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| 1270 |
An intelligent sensor fusion approach to pattern recognition with an application to bond validation of surface-mount componentsDar, Iqbal Mahmud 12 1900 (has links)
No description available.
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