A. Wiessner et H. Staerk, OPTICAL DESIGN CONSIDERATIONS AND PERFORMANCE OF A SPECTRO-STREAK APPARATUS FOR TIME-RESOLVED FLUORESCENCE SPECTROSCOPY, Review of scientific instruments, 64(12), 1993, pp. 3430-3439
A time-resolved spectral photometer, i.e., an instrument for simultane
ously measuring intensity, time, and wavelength (I-t-lambda) is descri
bed. The ''spectro-streak'' apparatus comprises a grating objective co
upled to a commercial streak camera with 2-ps resolution, a channel pl
ate amplifier, a CCD camera, and a computer for data processing. The n
ecessary calibration and correction procedures are discussed in detail
; these are sweep nonlinearity correction, shading correction, geometr
ic distortion correction, wavelength calibration, spectral intensity c
orrection, and dispersion correction. The performance of the instrumen
t is demonstrated with an example of current interest, the measurement
of the solvatochromic dynamic Stokes shift of fluorescence from a cha
rge-transfer system in solution.