During ablation tests with 10 pulses per spot we have determined an average LIPSS spacing of ∼870 nm for the fundamental wavelength of 1030 nm of the laser system and of ∼370 nm for the second harmonic wavelength of 515 nm. Those values fit the description of LIPSS reported elsewhere in the literature, e. g. . I. Gnilitskyi, T. J.-Y. Derrien, Y. Levy, N. M. Bulgakova, T. Mocek, and L. Orazi, “High-speed manufacturing of highly regular femtosecondlaser-induced periodic surface structures: Physical origin of regularity,” Sci. Rep., vol. 7, no. 1, 2017, Art. no. 8485.
RIKEN Center for Advanced Photonics, Japan
Dongshi Zhang and Koji Sugioka, Opto-electronic advances 2, 190002 (2019)
“Then, the ablated surfaces form a multilayer structure of water-silica-silicon. Multi-photon absorption occurs in the liquid, transforming it into a metallic state . Therefore, SPPs can also be excited at the interface between water and silica, modulating the surface structures into Si-HSFLs .”
“The life time of an SPP typically ranges from sub-ps to several ps  depending on the materials and irradiation wavelength, and can be extended up to microseconds when using a thin film sandwiched by different media .”
 Derrien T J Y, Koter R, Krüger J, Höhm S, Rosenfeld A et al. Plasmonic formation mechanism of periodic 100-nm-structures upon femtosecond laser irradiation of silicon in water. J Appl. Phys 116, 074902 (2014).
 Derrien T J Y, Krüger J, Bonse J. Properties of surface plasmon polaritons on lossy materials: Lifetimes, periods and excitation conditions. J Opt 18, 115007 (2016).
Weizmann Institute, Israël
Ora Bitton, Satyendra Nath Gupta, Gilad Haran, Nanophotonics, published online.
cites T. J.-Y. Derrien, J. Krüger, and J. Bonse, Journal of Optics 18, 115007 (2016).
Fritz Haber Institute, Germany
Ilya Razdolski et al., https://arxiv.org/abs/1901.08887
 T. J.-Y. Derrien, J. Krüger, and J. Bonse, Journal of Optics 18, 115007 (2016).
Rochester University, USA
Sohail A. Jalil, Chunlei Guo, et al., Applied Surface Science 471, 516–52 (2019)
“Furthermore, it was shown that , uniform FLIPSS are formed on metals with short surface plasmon polariton (SPP) propagation length, as we will discuss in detail later. […] It has been shown recently , that FLIPSSs uniformity is governed by the decay length of SPPs; shorter LSPP provide more uniform FLIPSSs. This conclusion is rational as shorter LSPP implies less interaction of the excited surface wave with surface irregularities. […]
 Gnilitskyi, T.J.-Y. Derrien, Y. Levy, N.M. Bulgakova, T. Mocek, L. Orazi, High-speed manufacturing of highly regular femtosecond laser-induced periodic surface structures: physical origin of regularity, Sci. Rep. 7, 8485 (2017)”
SLAC National Linear Accelerator, USA. CEIT-IK4 & Tecnun, San Sebastián, Spain.
M. Martínez-Calderon, E. Granados, et al., Sci. Rep. 8, 14262 (2018)
“For strong absorbing materials (such as metals and semiconductors) it has been demonstrated that the excitation of Surface Plasmon Polaritons (SPPs) plays a crucial role in the phenomenon. [25,26] […]
 Derrien, T. J. et al. Opt. Express 21 (2013).”
Biejing University, China
Lan Jiang et al., Light: Science & Applications Vol. 7, page 17134 (2018)
“The localized transient free electron density is rapidly increased through linear and nonlinear (multiphoton and avalanche) ionization, leading to the material transforming from a dielectric/semiconducting state into a metallic state […] [171, 172].
 Derrien TJY, Krüger J, Itina TE, Höhm S, Rosenfeld A et al. Opt Express 2013; 21: 29643–29655.
 Derrien TJY, Krüger J, Itina TE, Höhm S, Rosenfeld A et al. Appl Phys A 2014; 117: 77–81.”
Institute of Applied Physics, Johannes Kepler University Linz, Austria
C. M. Ahamer, J. D. Pedarnig, Spectrochimica Acta Part B: Atomic Spectroscopy 148, 23 (2018)
“Recently, Gnilitskyi et al.  reported that it was possible to produce highly regular LIPSS with a throughput 2.5 times’ faster than that reported by Bonse et al. and thus the processing time and cost could be even lower.
 Gnilitskyi, T.J.-Y. Derrien, Y. Levy, N.M. Bulgakova, T. Mocek, L. Orazi, High-speed manufacturing of highly regular femtosecond laser-induced periodic surface structures: physical origin of regularity, Sci. Rep. 7, 8485 (2017)
D. Ziemkiewicz, K. Słowik, and S. Zielińska-Raczyńska, Optics Letters 43, 490 (2018)
“The obtained correlation between SPP lifetime and group velocity agrees with the findings of Ref. , where moderate lifetime enhancement has been discussed at various metal-air interfaces.
 T. J.-Y. Derrien et al., J. Opt. 18, 115007 (2016)”
Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, USA.
Phillips, K. C.; Mazur E. et al., Adv. Opt. Photonics, 7, 684 (2015)
“The results of Derrien et al.  show that the SPPs can be excited by using a fs laser with 800 nm wavelength, 100 fs pulse duration, and laser fluences larger than 0.7 J∕cm2. A comparison of the calculated SPP periodicities and experimentally measured ripple periodicities confirms that the formation of periodic structures with a reduced number of laser pulses is due to the excitation of SPPs at the Si surface. […] In the case of laser processing in water , a reduced ablation threshold and LIPSS with approximately five times smaller periods Λ LIPSS ∼ 0.15 × λ have been observed in the same direction as in air. […] This behavior originates from the SPP excitation in the presence of a 10 – 20 nm thick silicon oxide layer and the optical excitation of water.
 T. J.-Y. Derrien, R. Koter, J. Kruger, S. Hohm, A. Resenfeld, and J. Bonse, Plasmonic formation mechanism of periodic 100-nm-structures upon femtosecond laser irradiation of silicon in water, J. Appl. Phys. 116, 074902 (2014).
 T. J.-Y. Derrien, T. E. Itina, R. Torres, T. Sarnet, and M. Sentis, Possible surface plasmon polariton excitation under femtosecond laser irradiation of silicon. J. Appl. Phys. 114, 083104 (2013).”
Lawrence Berkeley National Laboratory, Berkeley, California, USA.
University of California, Berkeley, USA.
Cushing, S. K., Leone, S. R. et al., Struct. Dyn., 5, 054302 (2018)
University of Texas Austin, USA. Chalmers University, Sweden. Moscow Inst. Phys. Tech., Russia.
Krasnok et al., Physical Review Appl., 9, 014015 (2018)
University of Calgary, Canada
Sang-Nourpour, N., Sanders, B. C. et al., J. Opt., 19, 125004 (2017)
Institute for Theoretical Physics III, University of Bayreuth, Germany.
Institute of Microelectronics Technology, Russian Academy of Sciences, Russia.
Larkin, I. et al., Phys. Rev. Lett., 119, 176801 (2017) (editor’s suggestion)
University of Napoli, Italy
He, S., Amoruso, S., et al., Opt. Express, 24, 3238 (2016)
OPTIMAS Research Center, Technical University of Kaiserslautern, Germany. Theoretische Physik, University of Kassel and CINSaT, Kassel, Germany.
Klett, I. et al., Phys. Rev. B, 91, 144303 (2015)