Direct mid-infrared femtosecond pulse shaping with a calomel acousto-optic programmable dispersive filter

Maksimenka, Raman; Nuernberger, Patrick; Lee, Kevin F.; Bonvalet, Adeline; Milkiewicz, Jadwiga; Bárta, Č.; Klíma, Miloš; Thomas, O.; Tournois, P.; Kaplan, D.; Joffre, Manuel

doi:10.1364/ol.35.003565

Cited by 34 publications

(20 citation statements)

References 17 publications

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“…The TWINS configurations we presented, using LiNbO 3 and -BBO as birefringent materials, work over the 190 nm -5 m range. Extension to longer wavelengths, especially to the fingerprint region (5-10 m) crucial for molecular identification [11], would be enabled by the use of birefringent materials with extended MIR transparency, such as Hg 2 Cl 2 (calomel) [49] and would result in simple, compact and low-cost FTIR spectrometers. The TWINS delay stability would also benefit step-scan FTIR spectroscopy, used to study structural dynamics in photoinduced reactions on the nanosecond to microsecond timescale [50].…”

Section: Discussionmentioning

confidence: 99%

Linear and Nonlinear Spectroscopy by a Common-Path Birefringent Interferometer

Preda

Oriana

Réhault

et al. 2017

IEEE J. Select. Topics Quantum Electron.

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We introduce a passive common-path interferometer to replace Michelson interferometers in Fourier transform spectroscopy. Our device exploits birefringence to introduce a highly accurate delay between two orthogonal polarization components by continuously varying the material thickness. Thanks to its inherent delay stability and reproducibility, it can be used even for short wavelengths (down to ~200nm) without the need for any active control or position tracking. We first demonstrate its performances in linear spectroscopy, by implementing a spectrometer and a spectrophotometer. We then extend its use to nonlinear spectroscopy and, in combination with lock-in detection at MHz modulation frequencies, illustrate its application to pump-probe spectroscopy with high sensitivity (ΔT⁄T<3·10-6 in 1-s integration time) and broad spectral coverage (>500nm) and to broadband stimulated Raman scattering microscopy in the CH stretching\ud region

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Section: Discussionmentioning

confidence: 99%

Linear and Nonlinear Spectroscopy by a Common-Path Birefringent Interferometer

Preda

Oriana

Réhault

et al. 2017

IEEE J. Select. Topics Quantum Electron.

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“…For few-cycle pulse compression, a common and robust approach is to use a bulk material to control the second-order phase (chirp) and use an AOPDF to control the higher-order phase. Although there is AOPDF that can work beyond 4 μ m3536, the rather low efficiency makes such AOPDF only applicable to narrowband mid-IR pulses. Since the chirp of the idler pulse is determined by the chirp of the pump pulse and the signal pulse, here we propose to compensate the higher-order phase of the idler pulse indirectly by controlling the higher-order phase of the signal pulse with an AOPDF that can work efficiently in the spectral range covering 2.4–4.0 μ m. To compensate a larger portion of chirp of the 4–12 μ m idler pulse, the search for an appropriate bulk material is also critical.…”

Section: Resultsmentioning

confidence: 99%

Towards Terawatt Sub-Cycle Long-Wave Infrared Pulses via Chirped Optical Parametric Amplification and Indirect Pulse Shaping

Yin

Chew

Ren

et al. 2017

Sci Rep

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We present an approach for both efficient generation and amplification of 4–12 μm pulses by tailoring the phase matching of the nonlinear crystal Zinc Germanium Phosphide (ZGP) in a narrowband-pumped optical parametric chirped pulse amplifier (OPCPA) and a broadband-pumped dual-chirped optical parametric amplifier (DC-OPA), respectively. Preliminary experimental results are obtained for generating 1.8–4.2 μm super broadband spectra, which can be used to seed both the signal of the OPCPA and the pump of the DC-OPA. The theoretical pump-to-idler conversion efficiency reaches 27% in the DC-OPA pumped by a chirped broadband Cr2+:ZnSe/ZnS laser, enabling the generation of Terawatt-level 4–12 μm pulses with an available large-aperture ZGP. Furthermore, the 4–12 μm idler pulses can be compressed to sub-cycle pulses by compensating the tailored positive chirp of the idler pulses using the bulk compressor NaCl, and by indirectly controlling the higher-order idler phase through tuning the signal (2.4–4.0 μm) phase with a commercially available acousto-optic programmable dispersive filter (AOPDF). A similar approach is also described for generating high-energy 4–12 μm sub-cycle pulses via OPCPA pumped by a 2 μm Ho:YLF laser.

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“…It has a very large birefringence (10 mm of calomel can introduce a path difference of 5 mm between orthogonal polarizations, translating into a frequency resolution of 2 cm −1 ) and transmits IR light between 380 nm and 20 μm. It was used recently as an infrared material for an acousto-optic programmable dispersive filter [32]. Yet, calomel is a difficult material to process in large single crystals and the cost of production currently prohibits its use for large optics.…”

Section: Discussionmentioning

confidence: 99%

2D IR spectroscopy with phase-locked pulse pairs from a birefringent delay line

Réhault¹,

Maiuri²,

Manzoni³

et al. 2014

Opt. Express

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Abstract:We introduce a new scheme for two-dimensional IR spectroscopy in the partially collinear pump-probe geometry. Translating birefringent wedges allow generating phase-locked pump pulses with exceptional phase stability, in a simple and compact setup. A He-Ne tracking scheme permits to scan continuously the acquisition time. For a proof-ofprinciple demonstration we use lithium niobate, which allows operation up to 5 μm. Exploiting the inherent perpendicular polarizations of the two pump pulses, we also demonstrate signal enhancement and scattering suppression.

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Direct mid-infrared femtosecond pulse shaping with a calomel acousto-optic programmable dispersive filter

Cited by 34 publications

References 17 publications

Linear and Nonlinear Spectroscopy by a Common-Path Birefringent Interferometer

Linear and Nonlinear Spectroscopy by a Common-Path Birefringent Interferometer

Towards Terawatt Sub-Cycle Long-Wave Infrared Pulses via Chirped Optical Parametric Amplification and Indirect Pulse Shaping

2D IR spectroscopy with phase-locked pulse pairs from a birefringent delay line

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