Photoacoustic detection of stimulated emission pumping in p · difluorobenzenea
نویسندگان
چکیده
Photoacoustic detection has b~en used to monitor a stimulated emission pumping process in p-difluorobenzene. Using the A B 2u 5 1 state as an intermediate, several vibrational levels of the ground electronic state were populated. The photoacoustic method is an attractive alternative to other detection techniques because of its sensitivity, simplicity, and its ability to differentiate between stimulated emission pumping and excited state absorption. An example of excited state absorption in aniline is given.
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