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Vibrational resonance enhanced broadband multiphoton absorption in a triphenylamine derivative
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Multiphoton absorption of 2,5-bis[4-(2-N,N-diphenylaminostyryl)phenyl]-1,3,4-oxadiazole was experimentally studied by using femtosecond laser pulses. This material demonstrates a very broad multiphoton absorption band of around 300nm width with two peaks of 1250 and 1475nm. The first peak results from the three-photon absorption process while the second is attributed to the vibrational resonance enhanced four-photon absorption process. Combination of these two processes provides a much broader multiphoton absorption band. In this letter, the analytical solution to nonlinear transmission of a three-photon absorption process is also given when the incident beam has a Gaussian transverse spatial profile.
Title: Vibrational resonance enhanced broadband multiphoton absorption in a triphenylamine derivative
Description:
Multiphoton absorption of 2,5-bis[4-(2-N,N-diphenylaminostyryl)phenyl]-1,3,4-oxadiazole was experimentally studied by using femtosecond laser pulses.
This material demonstrates a very broad multiphoton absorption band of around 300nm width with two peaks of 1250 and 1475nm.
The first peak results from the three-photon absorption process while the second is attributed to the vibrational resonance enhanced four-photon absorption process.
Combination of these two processes provides a much broader multiphoton absorption band.
In this letter, the analytical solution to nonlinear transmission of a three-photon absorption process is also given when the incident beam has a Gaussian transverse spatial profile.
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