Sub-picosecond ultr:lvtolet and visible pulses have been aed to study tile dynamic\ of mt~~unolccu1.u motion m the CYcited \inglet state of stilbcnc. In both tracts-and cis-stdhcne, e\cltcd state dbsorptlon 15 observed to tlecrc.i\e rapIdly .I\ the imtially excited singlet 5t.itc rclaucs tc, its con
Direct observation of effects of viscosity on the picosecond lifetimes of trans-stilbene
β Scribed by J.R. Taylor; M.C. Adams; W. Sibbett
- Publisher
- Elsevier Science
- Year
- 1980
- Weight
- 421 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0047-2670
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π SIMILAR VOLUMES
Transient resonance Raman spectra of transstilbene in n-hexane have been obtained using two pulsed lasers at 266 and 585 nm. The former was used to pump the molecule to the fust excited singlet state (Sr) and the latter to proble spontaneous Raman scattering in resonance with the S, + Sr electronic
FlUOr csocnee of U-W-E-srilbcnc in erhane a~ 350 K gives tie ban-ie~ crossing rarcg a~ a funcrion of pressure in lhc range 0 IO 170 atm The dala dernonswatc a peak m the rate at I20 atm (a wlluion frequency of (6-7)x10" s-'. or a viscotity of 0.03 cP). The dam are diisscd in tof the dlmcnsionalily;
We have used a simple Ar+synchronously pumped and cavity-dumped dye-laser system to generate UV picosecond pulses with energies sufficiently high for absorption recovery experiments. With these pulses, we have studied the dynamics of the isomerization of trans-stilbene in n-alcohols as a function of