面向超快二维电子光谱的脉冲压缩技术
作者:
作者单位:

北京理工大学 光电学院, 北京 100081

作者简介:

郭宇(1999—),男,山西忻州人,硕士研究生,E-mail:guoyugy@bit.edu.cn

通讯作者:

中图分类号:

O433.5+4

基金项目:

国家自然科学基金资助项目(U22A6006,62105030);北京理工大学科技创新计划资助项目


Pulse compression technology for ultrafast two-dimensional electronic spectroscopy
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Affiliation:

School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081 , China

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    摘要:

    脉冲压缩是超快二维电子光谱 (two-dimensional electronic spectroscopy, 2DES) 的关键技术之一,其直接决定了系统的时间分辨率,对研究激发态弛豫、溶剂化与量子相干传能等超快动力学机理有着重要意义。系统评述了2DES中常用的脉冲压缩方法:介绍了飞秒激光脉冲的时频域特性,详细讨论了光栅对、棱镜对、光栅-棱镜组合、脉冲整形器及啁啾镜对等脉冲压缩技术的原理与局限性,通过结合典型案例,分析了不同2DES系统中的压缩方法选择策略。拟通过系统梳理2DES中的脉冲压缩技术,为发展自主可控的高端超快光谱仪器以及推动超快科学等交叉学科领域的发展提供助力。

    Abstract:

    Pulse compression is one of the key technologies in ultrafast 2DES (two-dimensional electronic spectroscopy), which determines the time resolution of the system and is of great significance for studying ultrafast dynamic such as excited-state relaxation, solvation, and quantum coherent energy transfer. A systematic review of commonly-used pulse compression methods in 2DES was provided. The time-frequency characteristics of femtosecond laser pulses were introduced. Then, the principles and limitations of various pulse compression techniques were discussed in detail, including grating pairs, prism pairs, grating-prism combinations, pulse shapers, and chirped mirror pairs. By examining representative cases, the selection strategies for compression methods in different 2DES systems were analyzed. Through a systematic review of different pulse compression methods in 2DES, aimed to facilitate the development of advanced domestically mastered ultrafast spectroscopic instruments and contribute to the advancement of ultrafast science and related interdisciplinary fields.

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郭宇, 宋寅. 面向超快二维电子光谱的脉冲压缩技术[J]. 国防科技大学学报, 2025, 47(5): 24-33.

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  • 收稿日期:2025-04-17
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  • 在线发布日期: 2025-10-08
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