Direct optical analogs of (two-dimensional) NMR experiments require detection of the phase of a coherence induced by a (series of) laser pulses, which is difficult [1]. Recently it was demonstrated that by using a phase coherent pulse pair created by an acousto optic pulse shaper (AOPS), this phase information can be detected conveniently and fast. [2, 3] This technique was demonstrated on the one-photon transitions in Rubidium [3]. The same technique can be used to detect a coherence that is induced by two photons simultaneously [4], as we demonstrate experimentally by detecting the two-photon free induction decay (TPFID) of Rb and coumarin. Since the two-photon transition in Rb is resonance enhanced, several types of coherences are induced in the two-photon process. An AOPS allows a separation of these types of coherences, and has potential advantages for suppressing scattered light.Direct optical analogs of (two-dimensional) NMR experiments require detection of the phase of a coherence induced by a (series of) laser pulses, which is difficult [1]. Recently it was demonstrated that by using a phase coherent pulse pair created by an acousto optic pulse shaper (AOPS), this phase information can be detected conveniently and fast. [2, 3] This technique was demonstrated on the one-photon transitions in Rubidium [3]. The same technique can be used to detect a coherence that is induced by two photons simultaneously [4], as we demonstrate experimentally by detecting the two-photon free induction decay (TPFID) of Rb and coumarin. Since the two-photon transition in Rb is resonance enhanced, several types of coherences are induced in the two-photon process. An AOPS allows a separation of these types of coherences, and has potential advantages for suppressing scattered light.

International Conference on Ultrafast PhenomenaJan 1, 20021 citation

Proposal for Quantum Sensing Based on Two-Dimensional Dynamical Decoupling: NMR Correlation Spectroscopy of Single Molecules

Wen-Long Ma, Ren‐Bao Liu

In both optics and nuclear magnetic resonance, two-dimensional (2D) spectroscopy has been widely used to study correlations in ensembles of molecules. The authors articulate a scheme for universal 2D quantum sensing based on dynamical decoupling, to measure nuclear spin correlations, and therefore structural features, for a sample consisting of a $s\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}n\phantom{\rule{0}{0ex}}g\phantom{\rule{0}{0ex}}l\phantom{\rule{0}{0ex}}e$ $m\phantom{\rule{0}{0ex}}o\phantom{\rule{0}{0ex}}l\phantom{\rule{0}{0ex}}e\phantom{\rule{0}{0ex}}c\phantom{\rule{0}{0ex}}u\phantom{\rule{0}{0ex}}l\phantom{\rule{0}{0ex}}e$---a holy grail of analytical chemistry. These results also impact NMR-based quantum information processing that employs $e.g.$ N- $V$ centers in diamond.In both optics and nuclear magnetic resonance, two-dimensional (2D) spectroscopy has been widely used to study correlations in ensembles of molecules. The authors articulate a scheme for universal 2D quantum sensing based on dynamical decoupling, to measure nuclear spin correlations, and therefore structural features, for a sample consisting of a $s\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}n\phantom{\rule{0}{0ex}}g\phantom{\rule{0}{0ex}}l\phantom{\rule{0}{0ex}}e$ $m\phantom{\rule{0}{0ex}}o\phantom{\rule{0}{0ex}}l\phantom{\rule{0}{0ex}}e\phantom{\rule{0}{0ex}}c\phantom{\rule{0}{0ex}}u\phantom{\rule{0}{0ex}}l\phantom{\rule{0}{0ex}}e$---a holy grail of analytical chemistry. These results also impact NMR-based quantum information processing that employs $e.g.$ N-$V$ centers in diamond.

arXiv:1512.03548Physical Review AppliedNov 23, 201613 citations

Advances in magnetic and optical resonance

Warren S. Warren

Academic Press eBooksJan 1, 199029 citations

e.g.

N-

V

centers in diamond.