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Related papers: Chiral resolution by composite Raman pulses

200 papers

We propose an approach for single spin measurement. Our method uses techniques from the theory of quantum cellular automata to correlate a large amount of ancillary spins to the one to be measured. It has the distinct advantage of being…

Quantum Physics · Physics 2011-11-09 Carlos A. Perez-Delgado , Michele Mosca , Paola Cappellaro , David G. Cory

We combine multi-channel electronic structure theory with quantum optimal control to derive Raman pulse sequences that coherently populate a valence excited state. For a neon atom, Raman target populations of up to 13% are obtained.…

Quantum Physics · Physics 2015-07-23 Loren Greenman , Christiane P. Koch , K. Birgitta Whaley

Hybrid organic-inorganic perovskites with chiral organic cations are very interesting for optoelectronic applications because of their intrinsically chiral light-matter interactions. Chiral distortions in these materials lead to circular…

We propose and demonstrate a novel technique that combines Raman scattering and optical cycling in molecules with diagonal Franck-Condon factors. This resonance Raman optical cycling manipulates molecules to behave like efficient…

Atomic Physics · Physics 2021-08-26 J. C. Shaw , J. C. Schnaubelt , D. J. McCarron

The key challenge of time-resolved Raman spectroscopy is the identification of the constituent species and the analysis of the kinetics of the underlying reaction network. In this work we present an integral approach that allows for…

Numerical Analysis · Mathematics 2017-09-15 Robert Luce , Peter Hildebrandt , Uwe Kuhlmann , Jörg Liesen

We present a new and efficient implementation of Raman cooling of trapped atoms. It uses Raman pulses with an appropriate frequency chirp to realize a velocity selective excitation through a rapid adiabatic passage. This method allows to…

Quantum Gases · Physics 2011-10-10 Axel Kuhn , Hélène Perrin , Wolfgang Hänsel , Christophe Salomon

Single-loop cyclic three-level ($\Delta$-type) configuration of chiral molecules was used for enantio-separation in many theoretical works. Considering the effect of molecular rotation, this simple single-loop configuration is generally…

Quantum Physics · Physics 2018-12-12 Chong Ye , Quansheng Zhang , Yong Li

Enantio-conversion with the help of electromagnetic fields is an essential issue due to the chirality-dependence of many chemical, biological, and pharmaceutical processes. Here, we propose a method for this issue based on a five-level…

Quantum Physics · Physics 2021-03-03 Chong Ye , Bo Liu , Yu-Yuan Chen , Yong Li

We investigate the prospects of creating broad rotational wave packets by means of molecular interaction with long sequences of intense femtosecond pulses. Using state-resolved rotational Raman spectroscopy of oxygen, subject to a sequence…

Quantum Physics · Physics 2016-01-27 M. Bitter , V. Milner

Major advances in X-ray sources including the development of circularly polarized and orbital angular momentum pulses make it possible to probe matter chirality at unprecedented energy regimes and with Angstr\"om and femtosecond…

Chemical Physics · Physics 2022-09-20 Jeremy R. Rouxel , Shaul Mukamel

Nanophotonic chiral sensing has recently attracted a lot of attention. The idea is to exploit the strong light-matter interaction in nanophotonic resonators to determine the concentration of chiral molecules at ultra-low thresholds, which…

We propose an accurate and convenient method to achieve 100\% discrimination of chiral molecules with Lewis-Riesenfeld invariant. By reversely designing the pulse scheme of handed resolution, we obtain the parameters of the three-level…

Quantum Physics · Physics 2023-05-24 Hang Xu , Xue-Ke Song , Dong Wang , Liu Ye

Raman spectroscopy is a promising technique used for noninvasive analysis of samples in various fields of application due to its ability for fingerprint probing of samples at the molecular level. Chemometrics methods are widely used…

Quantitative Methods · Quantitative Biology 2022-10-20 Yulia Khristoforova , Lyudmila Bratchenko , Ivan Bratchenko

Recently, two related three wave mixing experiments have been demonstrated that use allowed rotational transitions to produce a free induction decay signal with an amplitude linearly proportional to the enantiomeric excess of a chiral…

Chemical Physics · Physics 2015-01-22 Kevin K. Lehmann

This paper presents a novel approach using multiple linear regression to process transient signals from silicon photomultipliers. The method provides excellent noise suppression and pulse detection in scenarios with a high pulse count rate…

Instrumentation and Detectors · Physics 2023-07-19 Wolfgang Schmailzl , Claudio Piemonte , Erika Garutti , Walter Hansch

The coherence of two, coupled two-level systems, representing vibrational modes in a semiclassical model, is calculated in weak and strong fields for various coupling schemes and for different relative phases between initial state…

Chemical Physics · Physics 2009-11-10 S. A. Malinovskaya , P. H. Bucksbaum , P. R. Berman

We introduce an atomic gravimetric sequence using Raman-type composite light pulses that excites a superposition of two momentum states with the same internal level. The scheme allows the suppression of common noise, making it less…

Linear off-resonant X-ray Raman techniques are capable of detecting the ultrafast electronic coherences generated when a photoexcited wave packet passes through a conical intersection. A hybrid femtosecond or attosecond probe pulse is…

Chemical Physics · Physics 2022-11-07 Lorenzo Restaino , Deependra Jadoun , Markus Kowalewski

We model the process of ultra broadband light generation in which a pair of laser pulses separated by the Raman frequency drive a Raman transition. In contrast to the usual approach using separate field envelopes for the different frequency…

Optics · Physics 2008-07-24 P. Kinsler , G. H. C. New

Plasmonic chirality exhibits great potential for novel nanooptical devices due to the generation of a strong chiroptical response. Previous reports on plasmonic chirality explanations are mainly based on phase retardation and coupling. We…

Mesoscale and Nanoscale Physics · Physics 2016-05-05 Li Hu , Yingzhou Huang , Yurui Fang