(Color online)The experimental setup for both liquid and solid-state quantum yield measurements using either a Hg arc lamp or Nd:YAG laser as the source. The components of this system are as follows: (a) Hg arc lamp, (b) monochromator, (c) iris, (d) focusing lens, (e) light valve, (f) mirror, (g) Nd:YAG laser, (h) mask for the laser beam, (i) variable temperature mounting plate, (j) sample holder, (k) focusing lens, (l) chopper, and (m) detector.
(Color online) A schematic of the Nd:YAG laser, which consists of (a) the laser module, (b) temperature set, (c) thermoelectric cooler modules, (d) a water cooling module, (e) a thermocouple, and (f) lens.
(Color online) Beam profiles for (a) Nd:YAG laser with and , and (b) high-pressure mercury arc lamp with and . The beam intensities are (a) and (b) . The beam profiles were obtained by reflecting the beam off a white surface onto an Ocean Optics USB4000 spectrometer and analyzed using Igor Carbon Pro fitting program.
The structure of polymer 1.
The photochemical reaction of polymer 1.
(Color online) Irradiation of a polymer containing the chromaphore unit using the Nd:YAG laser (represented with blue circles) at and the attenuated Hg arc lamp (represented with green squares) at .
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