Absorption cross-sections and lifetimes of S0, S1, and T1 states at different wavelengths

Range Table - link
Organism Unspecified
Reference Roy S, Kulshrestha K, Prasad M. Switching light with light in chlorophyll-A molecules based on excited-state absorption. IEEE Trans Nanobioscience. 2009 Mar8(1):83-91.PubMed ID19278934
Primary Source [18] D. S. Correa, L. Boni, D. S. Santos, Jr., N. M. B Neto, O. N. Oliveira, Jr., S. C. Misoguti Zilio, and C. R. Mendonca, “Reverse saturable absorption in chlorophyll a,” Appl. Phys. B, vol. 74, pp. 559–561, 2002. [19] L. De Boni, D. S. Chorrea, F. J. Pavinatto, D. S. Dos Santos, Jr., and C. R. Mendonca, “Excited state absorption spectrum of chlorophyll a obtained with white-light continuum,” J. Chem. Phys., vol. 126, pp. 165102– 165104, 2007. [20] H. Linschitz and K. Sarkanen, “The absorption spectra and decay kinetics of the metastable states of chlorophyll A and B,” J. Amer. Chem. Soc., vol. 80, pp. 4826–4832, 1958. [21] J. Baugher, J. C. Hindman, and J. J. Katz, “Determination of the triplet and excited singlet absorption spectra of chlorophyll a with a tunable dye laser,” Chem. Phys. Lett., vol. 63, pp. 159–162, 1979. [22] N.V. Tkachenko,D.Grandell, M. Ikonen, A. Jutila,V. Moritz, andH. Lemmetyinen, “Excitation energy relaxation in chlorophyll a Langmuir– Blodgett multilayer films,” Proc. SPIE, vol. 1921, pp. 254–260, 1992.PubMed ID17477634
Method The theoretically simulated switching characteristics namely, the variation in the normalized transmission of probe beam intensity (NTPI) with time, obtained by computer simulations, using (1)–(9), considering the S0 , S1 , and T1 states, corresponding to the experimental conditions with typical parameters given in Table I [primary sources], are shown in Fig. 3(b).
Comments Typical parameters used for Bchl are sS0=1.52×10-16cm2, sS0p=3.82×10-18cm2, sT1p=3.82×10-17cm2, tS0=6.2ns, tST=1.5ns, and tS0=80µs [see p.84 fig.1 for energy states S0, S1 and T1]
Entered by Uri M
ID 107405