Compensation of the capacitance effects produced by a HPDLC cell on a voltage amplifier
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http://hdl.handle.net/10045/16065
Títol: | Compensation of the capacitance effects produced by a HPDLC cell on a voltage amplifier |
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Autors: | Márquez, Andrés | Martínez Guardiola, Francisco Javier | Ortuño, Manuel | Gallego, Sergi | Alvarez, Mariela L. | Beléndez, Augusto |
Grups d'investigació o GITE: | Holografía y Procesado Óptico |
Centre, Departament o Servei: | Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías |
Paraules clau: | Liquid crystals | Photopolymer | Holography | Voltage amplifier |
Àrees de coneixement: | Óptica | Física Aplicada | Tecnología Electrónica |
Data de creació: | de maig-2010 |
Data de publicació: | 8-de setembre-2010 |
Editor: | Universidad Miguel Hernández de Elche |
Citació bibliogràfica: | MÁRQUEZ RUIZ, Andrés, et al. "Compensation of the capacitance effects produced by a HPDLC cell on a voltage amplifier", En: 3rd International Worshop on Liquid Crystals for Photonics-LCP2010 : September 8-10, 2010, Elche : book of abstracts / Ignacio Moreno, editor. Elche : Universidad Miguel Hernández, 2010. Comunicación PB4, pp. 109-110 |
Resum: | Holographic polymer-dispersed liquid crystal (HPDLC) is a composite electro-optic material, able to exhibit holographic volume regime and whose refraction index can be varied by the application of an electric field. This electrical tunability combined with volume regime offer the possibility of many interesting photonics applications such as in diffraction optics, reflection display, and in optical interfaces and interconnects. In principle H-PDLC cells need high voltage AC signals, typically 1 kHz bipolar waveforms, to be tuned, therefore a high voltage amplifier in combination with a waveform generator is necessary. In this work we provide evidence of limitations in the voltage range applied with our voltage amplifier due to the capacitance of the HPDLC cell. The theoretical modelling, done using OrCAD-PSpice® software confirms the experimental results. Finally we show how this limitation can be overcome. |
Patrocinadors: | This work was supported by the "Ministerio de Ciencia e Innovación" (Spain) under projects FIS2008-05856-C02-01 and FIS2008-05856-C02-02. |
URI: | http://hdl.handle.net/10045/16065 |
Idioma: | eng |
Tipus: | info:eu-repo/semantics/conferenceObject |
Revisió científica: | si |
Apareix a la col·lecció: | INV - GHPO - Comunicaciones a Congresos, Conferencias, etc. |
Arxius per aquest ítem:
Arxiu | Descripció | Tamany | Format | |
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LCP2010_Elche_Marquez_2010.pdf | 1,82 MB | Adobe PDF | Obrir Vista prèvia | |
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