Demonstration experiment for 3D ODS with wavelength-/intensity- multiplexing (IMAGE)
Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS
Caption
(a), Digital photographs of precursor glass (PG) and transparent glass ceramics (TGCs) under natural light (top), 254-nm UV light (middle) and thermal stimulation (bottom); in the condition of thermal stimulation, all the samples were charged by 254-nm light in advance for 5 min, delayed for 10 min to eliminate PersL, and then heated to 150 ¡ãC (for TGCs) or 500 ¡ãC (for PG). (b), PSL spectra of PG and TGC heat treated at 750 ¡ãC for different durations. (c), Schematic illustration of the multilayer TGC-configured ODS medium and the write-in/read-out process for optical information. (d), 3D optical data read-out using an 808-nm NIR laser (power density: 1.3 W/mm2) to show the encoded ¡°C¡±, ¡°A¡±, and ¡°S¡± of the binary system (the photos are taken through a 750-nm short-pass filter). (e), 3D optical read-out of the encoded images of Einstein in different layers with the aid of heat (150 ¡ãC). (f), Wavelength multiplexing by combining 4 TGC species with various heat treatment times into one system, where the multicolour encoded Chinese characters with the meaning of ¡°good fortunes¡±, English characters, and QR code can be read-out by heating. (g), Demonstration of the intensity multiplexing by varying the input UV irradiation power. Note: the time lags set to take photographs are 3 s for heating and 1 s for turning on the 808-nm laser.
Credit
by Shisheng Lin, Hang Lin, Chonggeng Ma, Yao Cheng, Sizhe Ye, Fulin Lin, Renfu Li, Ju Xu, Yuansheng Wang
Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.