Mid-Infrared Combs Group (MIR)
CREOL The College of Optics & Photonics
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Frequency Combs Mid-IR frequency combs: generation and applications

The broadband and coherent nature of frequency combs, both in frequency (a manifold of equally spaced narrow spectral lines) and in time (a strictly periodic train of pulses with stable carrier-envelope phase), has allowed a revolution in precision metrology and high-resolution broadband spectroscopy. The goal is ...

Dual Comb Dual comb spectroscopy

Frequency combs in the molecular 'fingerprint' portion of the spectrum (2-10 µm) have demonstrated great potential for spectroscopy. Especially attractive is dual-comb Fourier transform spectroscopy where full advantage is taken of ...

Dual Comb Photonic THz wave generation

Photonic generation of THz waves via down conversion in electro-optic crystals is an attractive (thanks to the progress in developing compact near-IR optical sources) but inefficient in comparison to mid-IR (because of the frequency cubed scaling factor) process. We develop photonic THz sources for ...

Dual Comb Nano-IR spectroscopy

The ability to identify material under the tip of an atomic force microscope (AFM) is one of the 'Holy Grails' of scanning probe microscopy. While AFM can measure mechanical, electrical, magnetic and thermal properties of materials, it has lacked the robust ability to chemically characterize unknown materials. Infrared spectroscopy is ...

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