DESIGN CONSIDERATIONS AND PERFORMANCE OF A SPECTRO-STREAK APPARATUS APPLYING A PLANAR LIGA MICROSPECTROMETER FOR TIME-RESOLVED ULTRAFAST FLUORESCENCE SPECTROSCOPY
H. Staerk et al., DESIGN CONSIDERATIONS AND PERFORMANCE OF A SPECTRO-STREAK APPARATUS APPLYING A PLANAR LIGA MICROSPECTROMETER FOR TIME-RESOLVED ULTRAFAST FLUORESCENCE SPECTROSCOPY, Review of scientific instruments, 67(7), 1996, pp. 2490-2495
Results of a pilot study with a spectro-streak apparatus applying a gr
ating microspectrometer with a self-focusing reflection grating are re
ported. The microspectrometer chip (dimensions: 17X6.4 mm(2); 125 mu m
effective thickness of the three-layer x-ray resist system), fabricat
ed with the versatile LIGA technique, has been adapted to a picosecond
streak camera. Performance tests have been carried out with a fluores
cent probe exhibiting a dynamic Stokes shift of the exciplex fluoresce
nce band due to solvation of the charge transfer dipole within about 4
00 ps. The use of a LIGA microspectrometer in ultrafast spectroscopy p
roved to be of advantage in time-resolved studies of complex luminesce
nce spectra where a moderate spectral resolution is required and a lar
ge spectral range must be covered. (C) 1996 American Institute of Phys
ics.