Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Quantum 2.0 Conference and Exhibition

Mid-Infrared Quantum Spectroscopy in a Dispersion-Engineered Integrated SU(1,1) Interferometer

Abira Gnanavel, Franz Roeder, René Pollmann, Benjamin Brecht, Christine Silberhorn

Published Jan 1, 2025• 0 citations
Publisher

Abstract

We present mid-infrared spectroscopy with undetected photons in an SU(1,1) interferometer based on a second-order dispersion-engineered, ultra-broadband, non-degenerate integrated parametric down-conversion source.
DOI
10.1364/quantum.2025.qth2c.4

Related papers

Mid-Infrared Spectroscopy with Undetected Photons via Time-Stretch Detection

Makoto Shoshin, Kazuki Hashimoto, Tatsuki Yamazumi +1 more

We present mid-infrared spectroscopy with undetected photons by incorporating time-stretch detection into a high-gain SU(1,1) interferometer, enabling photon-statistics analysis and high-scan-rate MIR transmittance measurements.

•Jan 1, 2026•0 citations

Fourier-domain low-coherence interferometry with undetected mid-infrared photons in the high-gain regime

Giovanni Zotti, Kazuki Hashimoto, D. B. Horoshko +4 more

We develop a high-parametric-gain SU(1,1) interferometer with an aperiodically-poled KTP crystal and demonstrate Fourier-domain low-coherence interferometry with undetected mid-infrared photons.

•Jan 1, 2025•0 citations

An Ultra-Broadband, Integrated Mid-Infrared Photon-Pair Source

Franz Roeder, René Pollmann, Abira Gnanavel +6 more

Broadband photon-pairs from a parametric down-conversion (PDC) source are essential for quantum optics experiments in the context of spectroscopy, quantum optical coherence tomography and entangled two-photon absorption [1]–[2]. Entangled two-photon absorption benefits from the ultra-short correlation time of a highly time-frequency entangled photon-pair which increases the absorption cross-section while in spectroscopy, broad spectral coverage in the mid-infrared allows one to enter the regime of life science applications.

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)•Jun 26, 2023•0 citations

Towards an integrated entangled photons source for mid-infrared ghost spectroscopy

Mathis Cohen, Romain Dalidet, Anthony Martin +2 more

We are developing integrated source-emitting photon pairs in the MIR and IR ranges. This source is the core component of a spectroscopic technique based on non-linear interferometry, which we have successfully demonstrated.

Quantum 2.0 Conference and Exhibition•Jan 1, 2025•0 citations

Mid-IR hyperspectral imaging with undetected photons

Marlon Placke, Chiara Lindner, Felix Mann +4 more

By combining a nonlinear interferometer in imaging-mode with Fourier-transform spectroscopy, we realize broadband mid-infrared hyperspectral acquisition with undetected photons. We demonstrate the novel imaging technique on polymer and bio-tissue samples using only near-infrared silicon-based cameras.

Quantum 2.0 Conference and Exhibition•Jan 1, 2024•0 citations

Broadband Sensing with Undetected Photons with Strong Parametric Amplification

Kazuki Hashimoto, Maria V. Chekhova

We develop an SU(1,1) interferometer with an aperiodically-poled LiNbO3 crystal in the high-parametric-gain regime to demonstrate Fourier-transform spectroscopy and optical coherence tomography with undetected photons.

•Jan 1, 2023•0 citations
Broadband photon-pairs from a parametric down-conversion (PDC) source are essential for quantum optics experiments in the context of spectroscopy, quantum optical coherence tomography and entangled two-photon absorption [1]–[2]. Entangled two-photon absorption benefits from the ultra-short correlation time of a highly time-frequency entangled photon-pair which increases the absorption cross-section while in spectroscopy, broad spectral coverage in the mid-infrared allows one to enter the regime of life science applications.