Author/Authors :
Yu، نويسنده , , Guoyang and Song، نويسنده , , Yunfei and Wang، نويسنده , , Yang and He، نويسنده , , Xing and Liu، نويسنده , , Yuqiang and Liu، نويسنده , , Weilong and Yang، نويسنده , , Yanqiang، نويسنده ,
Abstract :
A modified photon echo (PE) technique, the supercontinuum probing photon echo (SCPPE), is introduced and performed to investigate the vibrational coherence in organic dye IR780 perchlorate doped polyvinyl alcohol (PVA) film. The coherences of multiple vibrational states which belong to four vibrational modes create complex oscillations in SCPPE signal. The frequencies of vibrational modes are confirmed from the results of Raman calculation which accord fairly well with the results of Raman scattering experiment. Compared with conventional one-color PE, the SCPPE technique can realize broadband detection and make the experiment about vibrational coherence more efficient.
