Intense few-cycle visible pulses directly generated via nonlinear fibre mode mixing

R. Piccoli; J. M. Brown; Y.-G. Jeong; A. Rovere; L. Zanotto; M. B. Gaarde; F. Légaré; A. Couairon; J. C. Travers; R. Morandotti; B. E. Schmidt; L. Razzari

doi:10.1038/s41566-021-00888-7

Intense few-cycle visible pulses directly generated via nonlinear fibre mode mixing

R. Piccoli^*, J. M. Brown, Y.-G. Jeong, A. Rovere, L. Zanotto, M. B. Gaarde, F. Légaré, A. Couairon, J. C. Travers, R. Morandotti, B. E. Schmidt, L. Razzari

^*Corresponding author for this work

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Abstract

Extremely short, high-energy pulses are essential in modern ultrafast science. In a seminal paper in 1996¹, Nisoli and co-workers demonstrated the first intense pulse compression employing a gas-filled hollow-core fibre. Despite the huge body of scientific work on this technology stemming from ultrafast and attosecond research, here we identify an unexplored few-cycle visible-light generation mechanism, which relies on the nonlinear mixing of hollow-core fibre modes. Using a commercially available ytterbium laser, we generate 4.6 fs, 20 μJ pulses centred at around 600 nm (~2 cycles, ~4 GW peak power), ~40 times shorter than the input 175 fs, 1 mJ pulses at 1,035 nm. Our approach thus directly projects few-hundred-femtosecond-long infrared pulses into the single-cycle regime at visible frequencies, without the need for additional post-compression. As a powerful application of our findings, we present a compact, multicolour pump–probe set-up with a temporal resolution of a few optical cycles.

Original language	English
Pages (from-to)	884-889
Number of pages	6
Journal	Nature Photonics
Volume	15
Issue number	12
Early online date	28 Oct 2021
DOIs	https://doi.org/10.1038/s41566-021-00888-7
Publication status	Published - Dec 2021

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics

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Piccoli, R., Brown, J.M., Jeong, YG. et al. Intense few-cycle visible pulses directly generated via nonlinear fibre mode mixing. Nat. Photon. (2021). https://doi.org/10.1038/s41566-021-00888-7 © 2021 Springer Nature Limited
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title = "Intense few-cycle visible pulses directly generated via nonlinear fibre mode mixing",

abstract = "Extremely short, high-energy pulses are essential in modern ultrafast science. In a seminal paper in 19961, Nisoli and co-workers demonstrated the first intense pulse compression employing a gas-filled hollow-core fibre. Despite the huge body of scientific work on this technology stemming from ultrafast and attosecond research, here we identify an unexplored few-cycle visible-light generation mechanism, which relies on the nonlinear mixing of hollow-core fibre modes. Using a commercially available ytterbium laser, we generate 4.6 fs, 20 μJ pulses centred at around 600 nm (~2 cycles, ~4 GW peak power), ~40 times shorter than the input 175 fs, 1 mJ pulses at 1,035 nm. Our approach thus directly projects few-hundred-femtosecond-long infrared pulses into the single-cycle regime at visible frequencies, without the need for additional post-compression. As a powerful application of our findings, we present a compact, multicolour pump–probe set-up with a temporal resolution of a few optical cycles.",

author = "R. Piccoli and Brown, {J. M.} and Y.-G. Jeong and A. Rovere and L. Zanotto and Gaarde, {M. B.} and F. L{\'e}gar{\'e} and A. Couairon and Travers, {J. C.} and R. Morandotti and Schmidt, {B. E.} and L. Razzari",

note = "Funding Information: We would like to thank Natural Sciences and Engineering Research Council of Canada (NSERC) (Collaborative Research and Development (CRD) and Discovery Grants) and Prompt, Qu{\'e}bec. J.M.B. acknowledges support from the Air Force Office of Scientific Research under MURI award no. FA9550-16-1-0013. R.M. is affiliated to IFFS as an adjoint faculty. Publisher Copyright: {\textcopyright} 2021, The Author(s), under exclusive licence to Springer Nature Limited.",

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AU - Gaarde, M. B.

AU - Légaré, F.

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AU - Travers, J. C.

AU - Morandotti, R.

AU - Schmidt, B. E.

AU - Razzari, L.

N1 - Funding Information: We would like to thank Natural Sciences and Engineering Research Council of Canada (NSERC) (Collaborative Research and Development (CRD) and Discovery Grants) and Prompt, Québec. J.M.B. acknowledges support from the Air Force Office of Scientific Research under MURI award no. FA9550-16-1-0013. R.M. is affiliated to IFFS as an adjoint faculty. Publisher Copyright: © 2021, The Author(s), under exclusive licence to Springer Nature Limited.

PY - 2021/12

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N2 - Extremely short, high-energy pulses are essential in modern ultrafast science. In a seminal paper in 19961, Nisoli and co-workers demonstrated the first intense pulse compression employing a gas-filled hollow-core fibre. Despite the huge body of scientific work on this technology stemming from ultrafast and attosecond research, here we identify an unexplored few-cycle visible-light generation mechanism, which relies on the nonlinear mixing of hollow-core fibre modes. Using a commercially available ytterbium laser, we generate 4.6 fs, 20 μJ pulses centred at around 600 nm (~2 cycles, ~4 GW peak power), ~40 times shorter than the input 175 fs, 1 mJ pulses at 1,035 nm. Our approach thus directly projects few-hundred-femtosecond-long infrared pulses into the single-cycle regime at visible frequencies, without the need for additional post-compression. As a powerful application of our findings, we present a compact, multicolour pump–probe set-up with a temporal resolution of a few optical cycles.

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Intense few-cycle visible pulses directly generated via nonlinear fibre mode mixing

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