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Narrowband carrier-envelope phase stable mid-infrared pulses at wavelengths beyond 10  μm by chirped-pulse difference frequency generation

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Cartella,  A.
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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Nova,  Tobia F.
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
The Hamburg Centre for Ultrafast Imaging, Hamburg, Germany ;

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Först,  M.
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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Cavalleri,  A.
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
The Hamburg Centre for Ultrafast Imaging, Hamburg, Germany ;
Department of Physics, Clarendon Laboratory, University of Oxford, Oxford, UK ;

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Citation

Cartella, A., Nova, T. F., Oriana, A., Cerullo, G., Först, M., Manzoni, C., et al. (2017). Narrowband carrier-envelope phase stable mid-infrared pulses at wavelengths beyond 10  μm by chirped-pulse difference frequency generation. Optics Letters, 42(4), 663-666. doi:10.1364/OL.42.000663.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002C-5D73-8
Abstract
We report on the generation of narrowband carrier-envelope phase stable mid-infrared (MIR) pulses between 10 and 15 μm. High pulse energies and narrow bandwidths are required for the selective nonlinear excitation of collective modes of matter that is not possible with current sources. We demonstrate bandwidths of <2% at 12.5 μm wavelength through difference frequency generation between two near-infrared (NIR) pulses, which are linearly chirped. We obtain a reduction in bandwidth by one order of magnitude, compared to schemes that make use of transform-limited NIR pulses. The wavelength of the narrowband MIR pulse can be tuned by changing the optical delay between the two chirped NIR pulses.