Abstract

Stable and controllable optical memory is necessary for the development of current information technology. In this context, $\mathrm{Ag}/{\mathrm{TiO}}_2$ films have received much attention for their photosensitivity in wavelength and polarization, which can be applied to high-density optical storage. Here, we carried out dual-wavelength holographic recording using 403.4 nm and 532 nm lasers, and obtained mixed microfringes based on selective photodissolution of Ag nanoparticles of various sizes in ${\mathrm{TiO}}_2$ nanoporous films. Two recording methods of simultaneous and sequential multiplexing were investigated. It was found that using simultaneous irradiation it is easier to obtain equivalent efficiency in both spectral hole burning and multiplexed grating diffraction, compared with the sequential one. The results can be explained by the Time-accumulation effect during ${\mathrm{Ag}}^{+}$ ion diffusion and migration in holographic recordings. Based on such properties, multiplexed-holographic fringes with uniform contrast were reserved by simultaneous recording in $\mathrm{Ag}/{\mathrm{TiO}}_2$ films. This work provides a new strategy for fabrication of photonic devices with complex microstructures.

© 2017 Optical Society of America

Nonvolatile plasmonic holographic memory based on photo-driven ion migration

Shuangyan Liu, Shencheng Fu, Xiuxiu Han, Xinnong Wang, Ruiya Ji, Xintong Zhang, and Yichun Liu
Appl. Opt. 56(24) 6942-6948 (2017)

Visible laser-assisted reduction of plasmonic Ag nanoparticles with narrow-band optical absorption for colored holographic reconstruction

Xinnong Wang, Shencheng Fu, Xintong Zhang, Xiuxiu Han, Shuangyan Liu, Lihong Kang, Yang Zhang, and Yichun Liu
Opt. Express 25(25) 31253-31262 (2017)

Photoinduced anisotropy and polarization holographic gratings formed in Ag/TiO₂ nanocomposite films

Shencheng Fu, Xintong Zhang, Runyuan Han, Shiyu Sun, Lingling Wang, and Yichun Liu
Appl. Opt. 51(16) 3357-3363 (2012)

Accelerated formation of persistent holographic gratings based on one-directional electron transfer in KCl-Ag/Ta₂O₅ nanocomposites

Jiahui Zhou, Shencheng Fu, Xin Li, Xinnong Wang, Hongfang Liu, Yiqian Wang, Chunliang Wang, Yanqin Wang, and Xintong Zhang
Opt. Mater. Express 11(11) 3768-3778 (2021)

UV-resistant holographic data storage in noble-metal/semiconductor nanocomposite films with electron-acceptors

Shuangyan Liu, Shencheng Fu, Xintong Zhang, Xinnong Wang, Lihong Kang, Xiuxiu Han, Xi Chen, Jiarui Wu, and Yichun Liu
Opt. Mater. Express 8(5) 1143-1153 (2018)