Two-dimensional coherent spectroscopy of a THz quantum cascade laser: observation of multiple harmonicsTwo-dimensional spectroscopy is performed on a terahertz (THz) frequency quantum cascade laser (QCL) with two broadband THz pulses. Gain switching is used to amplify the first THz pulse and the ...
Current implementations of multi-dimensional coherent spectroscopy have long acquisition times and/or limited spectral resolution. In addition, most of the techniques utilize complex geometries or phase cycling schemes to isolate non-linear signals. We demonstrate a novel approach of using frequency combs...
Here we suggest and implement molecular-beam coherent 2D electronic mass spectrometry, combining 2D spectroscopy in effusive molecular beams with cation detection for probing the final-state population. Using time-of-flight mass spectrometry, we obtain a 2D spectrum simultaneously for the parent molecule...
John Carroll University From the SelectedWorks of Peifang Tian June, 2003 Femtosecond Phase-Coherent Two-Dimensional Spectroscopy Peifang Tian, John Carroll University Dorine Keusters Yoshifumi Suzaki Warren S. Warren Available at: https://works.bepress.com/peifang_tian/10/ Femtosecond Phase-Coherent...
Coherent Two-Dimensional Optical Spectroscopy 来自 掌桥科研 喜欢 0 阅读量: 91 作者: Cho,Minhaeng 摘要: Theoretical descriptions of two-dimensional (2D) vibrational and electronic spectroscopy are presented. By using a coupled multi-chromophore model, some examples of 2D spectroscopic studies of ...
Coherent two-dimensional (2D) spectroscopies conducted at visible and infrared wavelengths are having a transformative impact on the understanding of numerous processes in condensed phases. The extension of 2D spectroscopy to the ultraviolet spectral range (2DUV) must contend with several challenges, incl...
We introduce an inherently phase-stable setup for coherent two-dimensional femtosecond spectroscopy in noncollinear box geometry using only conventional beam splitters, mirrors, and delay stages. Avoiding diffractive optics, pulse shapers, and active phase-locking loops, our spectroscopy setup is simple,...
is coherent energy transfer between modes [24]. In this regime, nonlinear terms cannot be neglected. We note that such resonances become generic in systems with many ions. Sufficiently far from resonances, the dominant effect of the third-order terms is given by Kerr-type shifts of the mode ...
(111) as a benchmark for spectroscopy of the coherent nonlinear responses of metals to intense optical fields in the perturbative regime; similar 2D signatures can be expected for coherent responses in other materials like low dimensional semiconductors and strongly correlated materials. Employing ...
Time- and frequency-resolved coherent two-dimensional IR spectroscopy: Its complementary relationship with the coherent two-dimensional Raman scattering sp... Park, K.; Cho, M., Time- and frequency-resolved coherent two-dimensional IR spec- troscopy: Its complementary relationship with the coherent ...