Fluorescence anisotropy and isotropic rotational diffusion

As discussed above, for a single element planar transition tensor the angle-dependent two-photon transition probability is the squared modulus of the single photon cos 6 transition probability. Spontaneous emission from a two-photon excited molecular population occurs via the same — So transition as in single photon fluorescence [Pg.185]

CHll BIOLOGICAL APPLICAHONS OF SINGLE- AND TWO-PHOTON FLUORESCENCE [Pg.186]

The rotational diffusion time is proportional to the molecular hydrodynamic volume V and solvent viscosity 77 and inversely proportional to the thermal [Pg.188]