W. Shuicai et al., A three-wavelength Ti : sapphire femtosecond laser for use with the multi-excited photosystem II, APP PHYS B, 72(7), 2001, pp. 819-821
We have constructed a three-wavelength Ti:sapphire femtosecond laser with a
n independent tunable wavelength (lambda (1)) and two variable central wave
lengths (lambda (2) and lambda (3)) for use with the multi-excited photosys
tem II. Stable sub-40-fs pulses are generated. The hi-wavelength pulses can
be tuned independently from 750 nm to 850 nm. The center wavelengths lambd
a (2) and lambda (3) can be varied from 760 nm to 840 nm.