[Investigations of transient time-dependent spectral multi-channel measurement for shocked KCl crystal].
In this paper, the authors reported a new method for measuring transient time-dependent spectra using multi-fiber delay coupler and optical multi-channel analysis technique. The fiber delay coupler consists of five fibers with different lengths and its time-delay between two fibers is determined by the different fiber lengths. The light beams that came from the fiber coupler were coupled by a lens system into the slit of a spectrograph and formed a spectral pattern on the focus plane of the spectrometer. A two-dimensional CCD detector converted the optical pattern into an electrical pattern, and then the transient time-dependent spectra were obtained by a personal computer. The experimental setup was constructed, and the transient time-dependent spectra were measured for KCl crystal shocked by a high speed pill. The time resolution was 20 ns, and the spectral intensity resolution reached 1/18 bit.
Cheng
Juan
J
Department of Physics, Sichuan University, Chengdu 610064, China.
He
Ying-hong
YH
Zuo
Hao-yi
HY
Ran
Rui-jiang
RJ
Xue
Kang
K
Yang
Jing-guo
JG
Tan
Hua
H
Hu
Shao-lou
SL
Wang
Xiao-song
XS
D003459:Crystallins / Q000737:chemistry*; D004867:Equipment Design / Q000379:methods*; D005336:Fiber Optic Technology / Q000379:methods*; D055100:Optical Fibers; D011189:Potassium Chloride / Q000737:chemistry*; D013057:Spectrum Analysis; D013997:Time Factors
D003459:Crystallins; D011189:Potassium Chloride