二维红外光谱(2D-IR, two-dimensional infrared vibrational echo spectroscopy)是一种三阶非线性超快时间分辨光谱。 它的信号是分子体系对一系列超快红外激光脉冲所作出的一种时域非线性 …

Two-dimensional infrared spectroscopy (2D IR) is a nonlinear infrared spectroscopy technique that has the ability to correlate vibrational modes in condensed-phase systems. This technique …

2024年12月3日 · 二维红外光谱（2DIR）作为现代光谱学的重要分支，其发展受二维核磁共振（2D NMR）的启发。 20世纪70年代，2D NMR通过解析自旋耦合，揭示了一维谱图无法提供的分 …

The 2D IR technique obtains both static and dynamic molecular information through exciting molecular vibrations with ultrafast Mid-IR lasers. It is an IR analogue of two dimensional NMR, …

In 2D IR, infrared spectra are spread into a second dimension, providing information on vibrational couplings and separating the effects of homogeneous and inhomogeneous dynamics. This …

二维同步相关光谱中位于主对角线以外的峰叫做交叉峰，它显示扰动发生过程中ν1和ν2处的强度变化的相关变化。 为了便于观察自动峰和交叉峰的强度的相关变化，可以构造一个相关正方 …

近年来出现的飞秒激光二维红外(2d ir)光谱技术具有以飞秒时间分辨率测定凝聚相分子动态结构的潜力. 时间分辨率取决于飞秒激光的脉冲宽度, 分子结构信息存在于二维谱的对角峰和非对角峰中.

Two-Dimensional Infrared Spectroscopy is a technique that allows for the observation of coupling between vibrational modes in complex protein systems, providing information on bond …

2d ir 方法的显着特点是： 由许多重叠峰组成的复杂光谱的简化；通过在第二维上扩展峰值来增强光谱分辨率；通过对由各种交互机制选择性耦合的频带进行相关分析，建立明确的分配。

2D IR – VIBRATIONAL ANALOG OF 2D NMR. In 2D IR spectroscopy, we use 3 femtosecond pulses to generate a signal that can each be Fourier transformed to give a 2D spectrum. 2D …