Influence of the temporal fluctuations phenomena on the ECB LCoS performance

Liquid Crystal Displays (LCD) technology has shown to be very useful in numerous optical applications because of its capability to work as Spatial Light Modulators (SLM). The Liquid Crystal on Silicon (LCoS) displays are reflective LCDs that, because of the double pass of the incident beam through t...

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Detalles Bibliográficos
Publicado: 2009
Materias:
Depolarization
LCD
LCoS display
Phase fluctuations
Retardance
Temporal fluctuations
Data processing
Electric variables measurement
Light
Light modulation
Light modulators
Liquid crystals
Liquid membranes
Liquids
Molecules
Nematic liquid crystals
Optical projectors
Liquid crystal displays
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0277786X_v7442_n_p_Lizana
http://hdl.handle.net/20.500.12110/paper_0277786X_v7442_n_p_Lizana
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_0277786X_v7442_n_p_Lizana
record_format dspace
spelling paper:paper_0277786X_v7442_n_p_Lizana2023-06-08T15:26:32Z Influence of the temporal fluctuations phenomena on the ECB LCoS performance Depolarization LCD LCoS display Phase fluctuations Retardance Temporal fluctuations LCD LCoS display Phase fluctuations Retardance Temporal fluctuations Data processing Depolarization Electric variables measurement Light Light modulation Light modulators Liquid crystals Liquid membranes Liquids Molecules Nematic liquid crystals Optical projectors Liquid crystal displays Liquid Crystal Displays (LCD) technology has shown to be very useful in numerous optical applications because of its capability to work as Spatial Light Modulators (SLM). The Liquid Crystal on Silicon (LCoS) displays are reflective LCDs that, because of the double pass of the incident beam through the device, give higher phase modulation than transmission LCDs with the same thickness of the LC layer. In recent works, we have thoroughly analyzed the response of a twisted nematic LCoS display working in normal incidence and we have detected that the kind of electrical signal addressed to our display produces fluctuations as a function of time of the LCoS display molecules optical axis orientation. Moreover, the temporal fluctuations produce two different physical effects that can adversely affect in optical applications. On one hand, the molecules fluctuations may produce changes at the reflected state of polarization as a function of time, introducing certain amount of effective depolarization. On the other hand, it has been demonstrated that the molecules fluctuations produce phase fluctuations that may affect the efficiency of diffractive optics elements. Here, we have characterized an Electrically Controlled Birrefrigence (ECB) LCoS display that allows us to manipulate the electrical signal addressed to it. Then, by selecting the appropriate electrical signal we can increase or decrease the fluctuation phenomena. Therefore, we have performed a polarimetric study of our (ECB) LCoS, analyzing its response dependence with different electrical addressed signals and taking special attention to the depolarization and retardance response of our device. © 2009 SPIE. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0277786X_v7442_n_p_Lizana http://hdl.handle.net/20.500.12110/paper_0277786X_v7442_n_p_Lizana
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Depolarization
LCD
LCoS display
Phase fluctuations
Retardance
Temporal fluctuations
LCD
LCoS display
Phase fluctuations
Retardance
Temporal fluctuations
Data processing
Depolarization
Electric variables measurement
Light
Light modulation
Light modulators
Liquid crystals
Liquid membranes
Liquids
Molecules
Nematic liquid crystals
Optical projectors
Liquid crystal displays
spellingShingle Depolarization
LCD
LCoS display
Phase fluctuations
Retardance
Temporal fluctuations
LCD
LCoS display
Phase fluctuations
Retardance
Temporal fluctuations
Data processing
Depolarization
Electric variables measurement
Light
Light modulation
Light modulators
Liquid crystals
Liquid membranes
Liquids
Molecules
Nematic liquid crystals
Optical projectors
Liquid crystal displays
Influence of the temporal fluctuations phenomena on the ECB LCoS performance
topic_facet Depolarization
LCD
LCoS display
Phase fluctuations
Retardance
Temporal fluctuations
LCD
LCoS display
Phase fluctuations
Retardance
Temporal fluctuations
Data processing
Depolarization
Electric variables measurement
Light
Light modulation
Light modulators
Liquid crystals
Liquid membranes
Liquids
Molecules
Nematic liquid crystals
Optical projectors
Liquid crystal displays
description Liquid Crystal Displays (LCD) technology has shown to be very useful in numerous optical applications because of its capability to work as Spatial Light Modulators (SLM). The Liquid Crystal on Silicon (LCoS) displays are reflective LCDs that, because of the double pass of the incident beam through the device, give higher phase modulation than transmission LCDs with the same thickness of the LC layer. In recent works, we have thoroughly analyzed the response of a twisted nematic LCoS display working in normal incidence and we have detected that the kind of electrical signal addressed to our display produces fluctuations as a function of time of the LCoS display molecules optical axis orientation. Moreover, the temporal fluctuations produce two different physical effects that can adversely affect in optical applications. On one hand, the molecules fluctuations may produce changes at the reflected state of polarization as a function of time, introducing certain amount of effective depolarization. On the other hand, it has been demonstrated that the molecules fluctuations produce phase fluctuations that may affect the efficiency of diffractive optics elements. Here, we have characterized an Electrically Controlled Birrefrigence (ECB) LCoS display that allows us to manipulate the electrical signal addressed to it. Then, by selecting the appropriate electrical signal we can increase or decrease the fluctuation phenomena. Therefore, we have performed a polarimetric study of our (ECB) LCoS, analyzing its response dependence with different electrical addressed signals and taking special attention to the depolarization and retardance response of our device. © 2009 SPIE.
title Influence of the temporal fluctuations phenomena on the ECB LCoS performance
title_short Influence of the temporal fluctuations phenomena on the ECB LCoS performance
title_full Influence of the temporal fluctuations phenomena on the ECB LCoS performance
title_fullStr Influence of the temporal fluctuations phenomena on the ECB LCoS performance
title_full_unstemmed Influence of the temporal fluctuations phenomena on the ECB LCoS performance
title_sort influence of the temporal fluctuations phenomena on the ecb lcos performance
publishDate 2009
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0277786X_v7442_n_p_Lizana
http://hdl.handle.net/20.500.12110/paper_0277786X_v7442_n_p_Lizana
_version_ 1768545050167345152

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