Excited singlet-state absorption in laser dyes at the XeCl wavelength
โ Scribed by R. S. Taylor; S. Mihailov
- Publisher
- Springer
- Year
- 1985
- Tongue
- English
- Weight
- 594 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0721-7269
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Fluorcscencc spectra are presented, originstins from upper excited singlet stntcs in three santhene dyes. The cxpcrimentnl method, using biphoknic pulsed laser escitation, is shown to have advantages over sir&-photon ultraviolet irradiation. It is further shown that the observed spectra dcpcnd on th
The uzmstent absorbance of lo-' hi chlorophyll-a tn pyrxhne is obsened 10 and 300 ps aiter e\CltxtIon by a 7 ps, 355 nm pulse The t\%o states prtmanl) responstble for the observed s1g~11 are the ground and first excited smpler state Esttmzrcs oi the excited-state population ~2 computed and used IO c