THEORY OF FEMTOSECOND TIME-RESOLVED INFRARED-ABSORPTION SPECTROSCOPY WITH APPLICATION TO LIGAND DISSOCIATION IN HEMOGLOBIN

被引：5

作者：

ALDEN, RG ^{[1
]}

LIN, SH ^{[1
]}

XIAO, WZ ^{[1
]}

FAIN, B ^{[1
]}

ISLAMPOUR, R ^{[1
]}

机构：

[1] ARIZONA STATE UNIV, CTR STUDY EARLY EVENTS PHOTOSYNTHESIS, TEMPE, AZ 85287 USA

来源：

MOLECULAR PHYSICS | 1992年 / 75卷 / 06期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1080/00268979200101051

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper we present a theory of femtosecond time-resolved infrared absorption spectroscopy utilizing the theory of nonstationary time-dependent absorption. We treat the pump-probe absorption with nonoverlapping pulses using the stochastic Liouville equation. In this case, we deal only with the linear susceptibility and obtain the generalized linear response theory due to the fact that the system is initially nonstationary because of the femtosecond pulse duration. The adiabatic approximation is introduced to derive the theoretical expressions for the time-resolved IR absorption. Theoretical results are applied to interpret the experimental fs time-resolved IR spectra reported by Hochstrasser and co-workers for the direct observations of ligand dynamics in haemoglobin.

引用

页码：1375 / 1391

页数：17

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