Full-field coherence-gated holographic imaging through scattering media using a photorefractive polymer composite device

2004 ◽  
Vol 85 (3) ◽  
pp. 363-365 ◽  
Author(s):  
P. Dean ◽  
M. R. Dickinson ◽  
D. P. West
2001 ◽  
Author(s):  
Arthur B. Baggeroer ◽  
Henrik Schmidt ◽  
Edward K. Scheer

2003 ◽  
Author(s):  
Won Sun Kim ◽  
Jong Woo Lee ◽  
Shi-Joon Sung ◽  
Hyung S. Chang ◽  
Jung-Ki Park

2007 ◽  
Vol 21 (15) ◽  
pp. 2625-2634 ◽  
Author(s):  
J. L. MALDONADO ◽  
G. RAMOS-ORTÍZ ◽  
O. BARBOSA-GARCÍA ◽  
M. A. MENESES-NAVA ◽  
L. MÁRQUEZ ◽  
...  

We report dynamic holographic imaging with organic photorefractive polymer composites, doped with the electro-optic chromophore (2-(p-chlorophenyl)-(3′-nitrobenzo[d])-(4′′-methoxybenzo[h])-1,3-dioxa-6-aza-2-boracyclonon-6-ene, a push-pull molecule derived from a new class of boronates. The composites are based on the photoconductor poly(9-vinylcarbazole) (PVK) as the polymer matrix, and 9-ethylcarbazole (ECZ) as the plasticizer, with the fullerene C 60 as sensitizer. A tilted four-wave mixing geometry was used to record and reconstruct two-dimensional test objects, using a 10 mW He – Ne laser (632.8 nm). The recording response time was less than one second for a light intensity of ≈350 mW/cm 2 in each writing beam. The erasing time had a similar value. These composites have been used for over one year with no appreciable signs of degradation or crystallization.


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