TY  - JOUR
TI  - Acousto-optic imaging of a color picture hidden behind a scattering layer
UR  - http://dx.doi.org/10.1364/OE.21.026780
SP  - 26780 
JF  - Optics Express
EP  -  26785
AV  - public
ID  - discovery1417720
SN  - 1094-4087
N1  - Copyright © 2013 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.
A1  - Leung, TS
A1  - Jiang, S
VL  - 21
Y1  - 2013/11/04/
N2  - An imaging technique has been developed to image a color picture hidden behind a 5 mm thick, highly scattering layer with low transmittance of 0.24%. Small vibrations (< 1 µm) were induced in the hidden picture, causing a time-varying speckle pattern on the scattering layer in the front, which is captured by a CCD camera and quantified as speckle contrast difference (SCD). With two lasers at 543 nm and 633 nm, the imaging system raster-scans the front of the scattering layer and the resulting SCD image reveals the color features of the hidden picture.
IS  - 22
ER  -