ACCUMULATED PHOTON ECHO WITH COHERENT AND INCOHERENT PICOSECOND PULSES IN ORGANIC NANOSTRUCTURE MOLECULAR AGGREGATES

Liu Junye; Sun Lingdong; Chen Yimin; Don Kai; Huang Shihua; Yu Jiaqi; Otto Berg; Douwe Wiersma

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ACCUMULATED PHOTON ECHO WITH COHERENT AND INCOHERENT PICOSECOND PULSES IN ORGANIC NANOSTRUCTURE MOLECULAR AGGREGATES

更新时间：2020-08-11

- ACCUMULATED PHOTON ECHO WITH COHERENT AND INCOHERENT PICOSECOND PULSES IN ORGANIC NANOSTRUCTURE MOLECULAR AGGREGATES
- Chinese Journal of Luminescence Vol. 17, Issue 3, Pages: 197-203(1996)
- 作者机构：
  
  1. 中国科学院长春物理研究所长春,130021
  2. 中国科学院激发态物理开放实验室长春,130021
  3. 荷兰Groningen大学超快激光和光谱学实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：15 December 1995，
  
  Published：30 August 1996
- 稿件说明：
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刘俊业, 孙聆东, 陈一民, 窦恺, 黄世华, 虞家琪, Otto Berg, Douwe Wiersma. 混合分子聚集体有机纳米材料中相干与非相干皮秒脉冲累积光子回波[J]. 发光学报, 1996,17(3): 197-203

Liu Junye, Sun Lingdong, Chen Yimin, Don Kai, Huang Shihua, Yu Jiaqi, Otto Berg, Douwe Wiersma. ACCUMULATED PHOTON ECHO WITH COHERENT AND INCOHERENT PICOSECOND PULSES IN ORGANIC NANOSTRUCTURE MOLECULAR AGGREGATES[J]. Chinese Journal of Luminescence, 1996,17(3): 197-203
刘俊业, 孙聆东, 陈一民, 窦恺, 黄世华, 虞家琪, Otto Berg, Douwe Wiersma. 混合分子聚集体有机纳米材料中相干与非相干皮秒脉冲累积光子回波[J]. 发光学报, 1996,17(3): 197-203 DOI：

Liu Junye, Sun Lingdong, Chen Yimin, Don Kai, Huang Shihua, Yu Jiaqi, Otto Berg, Douwe Wiersma. ACCUMULATED PHOTON ECHO WITH COHERENT AND INCOHERENT PICOSECOND PULSES IN ORGANIC NANOSTRUCTURE MOLECULAR AGGREGATES[J]. Chinese Journal of Luminescence, 1996,17(3): 197-203 DOI：

摘要

用双调制(斩波器和驻波调制器)和外差检测累积光子回波技术

研究了PIC-I和azaPIC-I混合分子集体有机纳米材料中一维Frenkel激子的位相弛豫过程.观测到激子失相时间T2随azaPIC-I克分子数的增大从60ps变为224ps.这与在含能量陷阱的分子聚集体中激子失相时间T2随陷阱的增加而变短的现象刚好相反.并且对在脉宽为4ps和相于时间为1ps的相干脉冲和非相干脉冲的不同激发条件下的实验结果进行了分析和讨论.

Abstract

hase relaxation processes of one-dimension Frenkel excitons in organic nanostructure PIC-I and azaPIC-I mixed aggregates were investigated using heterodyne-detected accumulated photon echoes with double modulations(chopper and standing wave modulator).It was observed that the dephasing time

of excitons lengthened from 60 ps to 224 ps with increasing the mol of azaPIC-I.It is contrary to shortening of the dephasing time

of excitons in mixed aggregates with increasing traps.The results were discussed and analyzed under different excitation conditions of pulse duration 4 ps and correlation time 1 ps.

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