K. Van Gasse, Z. Chen, E. Vicentini, J. Huh, S. Poelman, Z. Wang, G. Roelkens, T.W. Hänsch, B. Kuyken, N. Picqué, An on-chip III-V-semiconductor-on-silicon laser frequency comb for gas-phase molecular spectroscopy in real-time, preprint at arXiv:2006.15113 (2020)

A. Shams-Ansari, M. Yu, Z. Chen, C. Reimer, M. Zhang, N. Picqué, M. Lončar, An integrated lithium-niobate electro-optic platform for spectrally tailored dual-comb spectroscopy, arXiv:2003.04533 (2020).

Z. Chen, T.W. Hänsch, N. Picqué, Up-conversion mid-infrared dual-comb spectroscopy, arXiv:2003.06930 (2020).

K. Fritsch, J. Brons, M. Iandulskii, K.F. Mak, Z. Chen, N. Picqué, O. Pronin, Dual-comb thin-disk oscillator, arXiv:2004.10303 (2020).


Recent articles in peer-reviewed journals

E. Vicentini, Z. Wang, K. Van Gasse, T.W. Hänsch, N. Picqué, Dual-comb hyperspectral digital holography, Nature Photonics 15, 890–894 (2021).  
Open access at 
Video summary at


M. Piccardo, V. Ginis, et al., Roadmap on multimode light shaping, Journal of Optics 24, 013001 (2022).

J. Huh, Z. Chen, E. Vicentini, T.W. Hänsch, N. Picqué, Time-resolved dual-comb spectroscopy with a single electro-optic modulator, Optics Letters 46, 3957-3960 (2021).

N. Picqué, T.W. Hänsch, Photon-level broadband spectroscopy and interferometry with two frequency combs, Proceedings of the National Academy of Sciences of the United States of America 117, 26688-26691 (2020).

N. Picqué, T.W. Hänsch, Frequency comb spectroscopy, Nature Photonics 13, 146-157 (2019).
Free view-only version without journal subscription at

A. Shams-Ansari, P. Latawiec, Y. Okawachi, V. Venkataraman, M. Yu, B. Desiatov, H. Atikian, G.L. Harris, N. Picqué, A.L. Gaeta, M. Loncar, Supercontinuum generation in angle-etched diamond waveguides, Optics Letters 44, 4056-4059 (2019).

N. Picqué, T.W. Hänsch, Mid-infrared spectroscopic sensing, Optics & Photonics News 19, 26-33, issue of June (2019).
Free online version at

G. Scalari, J. Faist, N. Picqué, On-chip mid-infrared and THz frequency combs for spectroscopy, Applied Physics Letters 114, 150401 (2019).

Z. Chen, T.W. Hänsch, N. Picqué, Mid-infrared feed-forward dual-comb spectroscopy, Proceedings of the National Academy of Sciences of the United States of America 116, 3454-3459 (2019).

J. Nürnberg, C. G. E. Alfieri, Z. Chen, D. Waldburger, N. Picqué, U. Keller, An unstabilized femtosecond semiconductor disk laser for dual-comb spectroscopy of acetylene, Optics Express 27, 3190-3199 (2019).

M.L. Weichmann, P.B. Changala, J. Ye, Z. Chen, M. Yan, N. Picqué, Broadband molecular spectroscopy with optical frequency combs, Journal of Molecular Spectroscopy 355, 66-78 (2019).

Z. Chen, M. Yan, T.W. Hänsch, N. Picqué, A phase-stable dual-comb interferometer, Nature Communications 9, 3035 (2018).

M. Yu, Y. Okawachi, A.G. Griffith, N. Picqué, M. Lipson, A.L. Gaeta, Silicon-chip-based mid-infrared dual-comb spectroscopy, Nature Communications 9, 1869 (2018).

S.A. Meek, A. Hipke, G. Guelachvili, T.W. Hänsch, N. Picqué, Doppler-free Fourier transfrom spectroscopy, Optics Letters 43, 162-165 (2018).

M. Yan, P.-L. Luo, K. Iwakuni, G. Millot, T.W. Hänsch, N. Picqué, Mid-infrared dual-comb spectroscopy with electro-optic modulators, Light: Science & Applications 6, e17067 (2017).

A. Parriaux, M. Conforti, A. Bendahmane, J. Fatome, C. Finot, S. Trillo, N. Picqué, G. Millot, Spectral broadening of picosecond pulses by dispersive shock waves in optical fibers, Optics Letters 42, 3044-3047 (2017).

M. Ferreira, E. Castro-Camus, D. Ottaway, J. Miguel Lopez-Higuera, X. Feng, K. P Chen, Y. Jeong, N. Picqué, L. Tong, B. Reinhard, P. Pellegrino, M. Diem, Q. Quan, Roadmap on Optical Sensors, Journal of Optics 19, 083001 (2017).

K.J. Mohler, B.J. Bohn, M. Yan, G. Mélen, T.W. Hänsch, N. Picqué, Dual-Comb Coherent Raman Spectroscopy with Lasers of 1-GHz Pulse Repetition Frequency, Optics Letters 42, 318-321 (2017).

G. Millot, S. Pitois, M. Yan, T. Hovannysyan, A. Bendahmane, T.W. Hänsch, N. Picqué, Frequency-agile dual-comb spectroscopy, Nature Photonics 10, 27-30 (2016).

B. Kuyken, T. Ideguchi, S. Holzner, M. Yan, T.W. Hänsch, J. Van Campenhout, P. Verheyen, S. Coen, F. Leo, R. Baets, G. Roelkens, N. Picqué, An octave spanning mid-infrared frequency comb generated in a silicon nanophotonic wire waveguide, Nature Communications 6, 6310 (2015).

A. Hipke, S.A. Meek, T. Ideguchi, T.W. Hänsch, N. Picqué, Broadband Doppler-limited two-photon and stepwise excitation spectroscopy with laser frequency combs, Phys. Rev. A 90, 011805(R) (2014).

S. Chaitanya Kumar, A. Esteban-Martin, T. Ideguchi, M. Yan, S. Holzner, T.W. Hänsch, N. Picqué, M. Ebrahim-Zadeh, Few-cycle broadband mid-infrared optical parametric oscillator pumped by a 20-fs Ti:sapphire laser, Laser Photonics Rev. 8, L86–L91 (2014).

T. Ideguchi, A. Poisson, G. Guelachvili, N. Picqué, T.W. Hänsch, Adaptive real-time dual-comb spectroscopy, Nature Communications 5, 3375 – 8 pages (2014).

S.A. Meek, A. Poisson, G. Guelachvili, T.W. Hänsch, N. Picqué, Fourier transform spectroscopy around 3 μm with a broad difference frequency comb, Applied Physics B 114, 573-578 (2014).

T. Ideguchi, S. Holzner, B. Bernhardt, G. Guelachvili, N. Picqué, T.W. Hänsch, Coherent Raman spectro-imaging with laser frequency combs, Nature 502, 355-358 (2013).

T.W. Hänsch and N. Picqué, Laser spectroscopy and frequency combs, Journal of Physics: Conference Series 467, 012001 – 7 pages (2013).

C.Y. Wang, T. Herr, P. Del’Haye, A. Schliesser, R. Holzwarth, T. W. Hänsch, N. Picqué and T. J. Kippenberg, Mid-infrared optical frequency combs at 2.5 μm based on crystalline microresonators, Nature Communications 4, 1345 (2013).

T.W. Hänsch, N. Picqué, Future Fourier transform spectroscopy, Encyclopedia of Biophysics, Springer Verlag, 1792-1799 (2013).

T. Ideguchi, B. Bernhardt, G. Guelachvili, T.W. Hänsch, N. Picqué, Raman-induced Kerr effect dual-comb spectroscopy, Optics letters 37, 4498-4500 (2012).

T. Ideguchi, A. Poisson, G. Guelachvili, T.W. Hänsch, N. Picqué, Adaptive dual-comb spectroscopy of iodine in the green region, Optics letters 37, 4847-4849 (2012).

A. Schliesser, N. Picqué, T.W. Hänsch, Mid-infrared frequency combs, Nature Photonics 6, 440-449 (2012).

R. Chiche, D. Jehanno, V. Soskov, A. Variola, F. Zomer, N. Picqué, Les cavités Fabry-Pérot en mode pulsé et leurs récentes applications, in Systemes femtosecondes, optique et phénomènes ultrarapides, Publication mission ressources et compétences technologiques, 119-169 (2012).

T.W. Hänsch, N. Picqué, Frequency combs, Handbook of Lasers and Optics, second edition, F. Träger Ed., Springer Berlin Heidelberg, 1285-1304 (2012).

N. Picqué, T.W. Hänsch, Molecular spectroscopy with laser frequency combs, Proceedings of the 20th International Conference on Laser Spectroscopy, 185-194, W. Ertmer, R. Scholz Ed., Logos Verlag Berlin (2011).

T.W. Hänsch, N. Picqué, Peignes de fréquences femtosecondes : aux limites de la spectroscopie, Images de la Physique 2011, 31-38 (2011).

B. Bernhardt, N. Picqué, T.W. Hänsch, Echtzeit-Spurengasanalyse mit Frequenzkämmen, Physik in unserer Zeit 41, 59-60 (2010).

B. Bernhardt, E. Sorokin, P. Jacquet, R. Thon, T. Becker, I.T. Sorokina, N. Picqué, T.W. Hänsch, Mid-infrared dual comb spectroscopy with Cr2+ZnSe femtosecond oscillators, Applied Physics B 100, 3-8, 2010.

B. Bernhardt, A. Ozawa, P. Jacquet, M. Jacquey, Y. Kobayashi, T. Udem, R. Holzwarth, G. Guelachvili, T.W. Hänsch, N. Picqué, Cavity-enhanced dual-comb spectroscopy, Nature Photonics 4, 55-57, 2010.

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