Light-emitting physical mechanism of broadband modulated dye HA in new laser light sources

GAO Bo-wen; MENG Jing; ZHANG Jing-hu

doi:10.3969/j.issn.1001-3806.2011.01.024

In order to reveal the physical mechanism of broadband modulated hypocrellin A(HA), the effect of high power laser excitation was studied. The existence of excited-state intramolecular proton transfer(ESIPT)in HA molecules was proved in theory and experiments. The energy level model of HA molecules was presented. The results show that ESIPT process in HA molecules can be achieved only under the condition of two-photon absorption. This result is helpful for a better understanding of the photophysical mechanism of HA.

Light-emitting physical mechanism of broadband modulated dye HA in new laser light sources

1. Shandong Provincial Key Laboratory of Laser polarization and Information Technology, Laser Institute, Qufu Normal University, Qufu 273165, China;

2. College of Physics and Engineering, Qufu Normal University, Qufu 273165, China

Received Date: 2010-03-23

Accepted Date: 2010-06-11

Available Online: 2011-01-25

Abstract: In order to reveal the physical mechanism of broadband modulated hypocrellin A(HA), the effect of high power laser excitation was studied. The existence of excited-state intramolecular proton transfer(ESIPT)in HA molecules was proved in theory and experiments. The energy level model of HA molecules was presented. The results show that ESIPT process in HA molecules can be achieved only under the condition of two-photon absorption. This result is helpful for a better understanding of the photophysical mechanism of HA.

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Reference (12)

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Light-emitting physical mechanism of broadband modulated dye HA in new laser light sources

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References

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