Quantum interferometric two-photon excitation spectroscopy
- URL: http://arxiv.org/abs/2111.11950v1
- Date: Tue, 23 Nov 2021 15:44:08 GMT
- Title: Quantum interferometric two-photon excitation spectroscopy
- Authors: Yuanyuan Chen, Roberto de J. Le\'on-Montiel, Lixiang Chen
- Abstract summary: We present an approach for quantum interferometric two-photon excitation spectroscopy.
Our proposed protocol overcomes the difficulties of engineering two-photon joint spectral intensities and fine-tuned absorption-frequency selection.
Results may significantly facilitate the use of quantum interferometric spectroscopy for extracting the information about the electronic structure of the two-photon excited-state manifold of atoms or molecules.
- Score: 7.708943730059219
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Two-photon excitation spectroscopy is a nonlinear technique that has gained
rapidly in interest and significance for studying the complex energy-level
structure and transition probabilities of materials. While the conventional
spectroscopy based on tunable classical light has been long established,
quantum light provides an alternative way towards excitation spectroscopy with
potential advantages in temporal and spectral resolution, as well as reduced
photon fluxes. By using a quantum Fourier transform that connects the
sum-frequency intensity and N00N-state temporal interference, we present an
approach for quantum interferometric two-photon excitation spectroscopy. Our
proposed protocol overcomes the difficulties of engineering two-photon joint
spectral intensities and fine-tuned absorption-frequency selection. These
results may significantly facilitate the use of quantum interferometric
spectroscopy for extracting the information about the electronic structure of
the two-photon excited-state manifold of atoms or molecules, in a "single-shot"
measurement. This may be particularly relevant for photon-sensitive biological
and chemical samples.
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