Recently, a new class of light modulators, based on PDLC systems have been reported1'2. Here, we present a Polymer Dispersed Chiral Nematic (PDCN) utilizing the linear electro-optic effect in chiral nematics with uniformly aligned helix under an electric field, applied normally to the helix axis3. A fairly good linear response has been detected in such PDCN films, containing a chiral nematic mixture 6415 L (Hoffmann La Roche), possessing a short pitch (about 0.3 μm), temperature independent in wide temperature interval (0°C - 50°C). Response time of about 100 p. s has been measured.2. J. Erdmann, J. W. Doane S. Zumer, G. Chidichimo, SPIE vol. 1080 Liquid Crvstal Chemistry. Physics and Applications and uses. vol. 1. © 1994, Taylor & Francis Group, LLC. All rights reserved.
Linear light modulation by a polymer dispersed chiral nematic
Chidichimo, G.
1994-01-01
Abstract
Recently, a new class of light modulators, based on PDLC systems have been reported1'2. Here, we present a Polymer Dispersed Chiral Nematic (PDCN) utilizing the linear electro-optic effect in chiral nematics with uniformly aligned helix under an electric field, applied normally to the helix axis3. A fairly good linear response has been detected in such PDCN films, containing a chiral nematic mixture 6415 L (Hoffmann La Roche), possessing a short pitch (about 0.3 μm), temperature independent in wide temperature interval (0°C - 50°C). Response time of about 100 p. s has been measured.2. J. Erdmann, J. W. Doane S. Zumer, G. Chidichimo, SPIE vol. 1080 Liquid Crvstal Chemistry. Physics and Applications and uses. vol. 1. © 1994, Taylor & Francis Group, LLC. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
