Title :
Rare earth materials for population density control with ultra-high-speed optical pulses
Author :
Dai, D.C. ; Luo, Q. ; Li, R.H. ; Yu, X.Y. ; Qiu, Z.R. ; Zhou, J.Y. ; Yang, Y.S.
Author_Institution :
State Key Lab. of Ultrafast Laser Spectroscopy, Zhongshan Univ., Guangzhou, China
Abstract :
The rare earth materials, KNdFe(CN)/sub 6/.3H/sub 2/O (KNFCN), NdFe(CN)/sub 6/.4H/sub 2/O (NFCN), and NdFeO/sub 3/ (NFO) are characterized by absorption and fluorescence spectra. The dephasing times (T/sub 2/) and the fluorescent lifetimes (T/sub 1/) of the materials are determined. The critical bit rate (W/sub crit/) for ultra-high-speed population density control is discussed. The feasibility of using the materials for ultra-high-speed, all-optical switching devices is presented.
Keywords :
density control; fluorescence; high-speed optical techniques; infrared spectra; iron compounds; neodymium compounds; optical materials; optical switches; photoluminescence; potassium compounds; radiative lifetimes; reflectivity; visible spectra; KNdFe(CN)/sub 6/; KNdFe(CN)/sub 6/-H/sub 2/O; KNdFe(CN)/sub 6/.3H/sub 2/O; NdFe(CN)/sub 6/; NdFe(CN)/sub 6/-H/sub 2/O; NdFe(CN)/sub 6/.4H/sub 2/O; NdFeO/sub 3/; absorption spectra; all-optical switching devices; critical bit rate; dephasing times; fluorescence spectra; fluorescent lifetimes; population density control; rare earth materials; ultra-high-speed all-optical switching devices; ultra-high-speed optical pulses; ultra-high-speed population density control; Bit rate; Fluorescence; Optical control; Optical materials; Optical pulses; Particle beam optics; Semiconductor materials; Spectroscopy; Temperature; Ultrafast optics;
Journal_Title :
Photonics Technology Letters, IEEE
