Photo-Induced Phenomena in Bi sub(4-x)La sub(x) Ti sub(3)O sub(12)

Two photo-induced phenomena have been newly discovered in Bi sub(4-x)La sub(x)Ti sub( 3)O sub(12) (BLT0.41). One of them is"photo-darkening phenomenon (PD)"; the laser illuminated area turns black below T = 390 degree C, where the wavelength of the laser is 514.5 nm. The other is"phot...

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Bibliographic Details
Published in:Ferroelectrics 2012-01, Vol.429 (1), p.103-109
Main Authors: Yanagisawa, Tomori, Tsujimi, Yuhji, Iwata, Makoto
Format: Article
Language:English
Subjects:
Ferroelectric materials
Lasers
Wavelengths
Online Access:Get full text
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Summary:Two photo-induced phenomena have been newly discovered in Bi sub(4-x)La sub(x)Ti sub( 3)O sub(12) (BLT0.41). One of them is"photo-darkening phenomenon (PD)"; the laser illuminated area turns black below T = 390 degree C, where the wavelength of the laser is 514.5 nm. The other is"photo-erasable memory phenomenon (PEM)"; the blackened area produced by the PD becomes transparent when the same laser is illuminated on the other area where is d = 80 mu m away from the blackened area. The PEM is found to occur in the temperature range between 230 degree C and 390 degree C in case of d = 80 mu m and in the distance range of d
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2012.676973