Phase-stable Two-dimensional Spectroscopy
Optical spectroscopy in general can be used to analyze structures on an atomic level. Coherent two-dimensional (2D) spectroscopy yields information about the temporal evolution and coupling in the molecules under investigation. The idea is analogous to 2D nuclear magnetic resonance spectroscopy (NMR) which is a standard technique for analyzing molecular structures. Optical 2D spectroscopy, however, can achieve a much higher temporal resolution on the order of femtoseconds (10-15 fs) and is sensitive to the coupling of larger molecular units or colour centres (chromophores) of supramolecular structures.
The challenge to realize such spectrometers lies in the necessary relative phase-stability of the applied laser pulses. The invention uses a rather simple and cost-effective principle and design for a coherent 2D spectrometer. High phase-stability of the laser beams is inherently reached using only conventional beam splitters and mirrors, and avoiding diffractive optics, pulse shapers or phase-locking loops. This setup of the spectrometer can be constructed for a broad range of wavelengths, ranging from infrared to visible and even ultraviolet light. Especially the unrestricted utilization of visible light and light of shorter wavelengths, which is possible with this invention, will be important, as many biological systems, organic photovoltaic cells or quantum dots have absorption spectra in this wavelength range.
Further Information: PDF
Bayerische Patentallianz GmbH
Phone: +49 89 5480177-0
Contact
Peer Biskup
Media Contact
All latest news from the category: Technology Offerings
Newest articles
Microscopic basis of a new form of quantum magnetism
Not all magnets are the same. When we think of magnetism, we often think of magnets that stick to a refrigerator’s door. For these types of magnets, the electronic interactions…
An epigenome editing toolkit to dissect the mechanisms of gene regulation
A study from the Hackett group at EMBL Rome led to the development of a powerful epigenetic editing technology, which unlocks the ability to precisely program chromatin modifications. Understanding how…
NASA selects UF mission to better track the Earth’s water and ice
NASA has selected a team of University of Florida aerospace engineers to pursue a groundbreaking $12 million mission aimed at improving the way we track changes in Earth’s structures, such…
