@article{MTMT:34559864,
	title = {Few-cycle laser pulse characterization on-target using high-harmonic generation from nano-scale solids},
	url = {https://m2.mtmt.hu/api/publication/34559864},
	author = {Awad, Mohanad and Manna, Apurba and Hell, Sebastian and Ying, Bo and Ábrók, Levente and Divéki, Zsolt and Cormier, Eric and Kiss, Bálint and Böhmer, Jan and Ronning, Carsten and Han, Seung Heon and George, Antony and Turchanin, Andrey and Pfeiffer, Adrian N. and Kübel, Matthias},
	doi = {10.1364/OE.508062},
	journal-iso = {OPT EXPRESS},
	journal = {OPTICS EXPRESS},
	volume = {32},
	unique-id = {34559864},
	issn = {1094-4087},
	abstract = {We demonstrate high-harmonic generation for the time-domain observation of the electric field (HHG-TOE) and use it to measure the waveform of ultrashort mid-infrared (MIR) laser pulses interacting with ZnO thin-films or WS 2 monolayers. The working principle relies on perturbing HHG in solids with a weak replica of the pump pulse. We measure the duration of few-cycle pulses at 3200 nm, in reasonable agreement with the results of established pulse characterization techniques. Our method provides a straightforward approach to accurately characterize femtosecond laser pulses used for HHG experiments right at the point of interaction.},
	year = {2024},
	pages = {1325-1333},
	orcid-numbers = {Hell, Sebastian/0000-0003-0302-5003; Ronning, Carsten/0000-0003-2667-0611; Pfeiffer, Adrian N./0000-0003-2975-8715; Kübel, Matthias/0000-0001-6065-6122}
}

@article{MTMT:33743064,
	title = {Tailoring surface topographies on solids with Mid-IR femtosecond laser pulses},
	url = {https://m2.mtmt.hu/api/publication/33743064},
	author = {Maragkaki, S. and Tsibidis, G.D. and Haizer, Ludovit and Pápa, Zsuzsanna and Flender, Roland and Kiss, Bálint and Márton, Zsuzsanna and Stratakis, E.},
	doi = {10.1016/j.apsusc.2022.155879},
	journal-iso = {APPL SURF SCI},
	journal = {APPLIED SURFACE SCIENCE},
	volume = {612},
	unique-id = {33743064},
	issn = {0169-4332},
	abstract = {Irradiation of solids with ultrashort pulses using laser sources in the mid-infrared (mid-IR) spectral region is a yet predominantly unexplored field that opens broad possibilities for efficient and precise surface texturing for a wide range of applications. In the present work, we investigate both experimentally and theoretically the impact of laser sources on the generation of surface modification related effects and on the subsequent surface patterning of metallic and semiconducting materials. Through a parametric study we correlate the mid-IR pulsed laser parameters with the onset of material damage and the formation of a variety of periodic surface structures at a laser wavelength of λL = 3200 nm and a pulse duration of τp = 45 fs. Results for nickel and silicon indicate that the produced topographies comprise both high and low spatial frequency induced periodic structures, similar to those observed at lower wavelengths, while groove formation is absent. The investigation of the damage thresholds suggests the incorporation of nonlinear effects generated from three-photon-assisted excitation (for silicon) and the consideration of the role of the non-thermal excited electron population (for nickel) at very short pulse durations. The results demonstrate the potential of surface structuring with mid-IR pulses, which can constitute a systematic novel engineering approach with strong fields at long-wavelength spectral regions that can be used for advanced industrial laser applications. © 2022 Elsevier B.V.},
	keywords = {NICKEL; topography; Surface structure; Laser applications; RELAXATION PROCESSES; ULTRASHORT PULSES; Pulsed lasers; Laser texturing; multiscale modeling; ultrafast dynamics; Multiscale modelling; Damage threshold; Damage threshold; Laser sources; laser-induced periodic surface structures; ULTRASHORT-PULSE; laser induced periodic surface structures; Mid-infrared pulse; Ultra-fast dynamics; Femtosecond laser texturing with mid-IR pulses; Femtosecond laser texturing with mid-infrared pulse; Mid-infrared spectral regions},
	year = {2023},
	eissn = {1873-5584},
	orcid-numbers = {Pápa, Zsuzsanna/0000-0003-3567-6468; Flender, Roland/0000-0001-6970-0716; Márton, Zsuzsanna/0000-0001-7625-3571}
}

@{MTMT:33275136,
	title = {Polarization Dependence of Laser Induced inner-shell excitations},
	url = {https://m2.mtmt.hu/api/publication/33275136},
	author = {Deng, Yunpei and Zeng, Zhinan and Komm, Pavel and Zheng, Yinghui and Helml, Wolfram and Xie, Xinhua and Filus, Zoltán and Dumergue, Mathieu and Flender, Roland and Kurucz, Máté and Haizer, Ludovit and Kiss, Bálint and Kahaly, Subhendu and Li, Ruxin and Marcus, Gilad},
	booktitle = {Optica High-brightness Sources and Light-driven Interactions Congress 2022},
	doi = {10.1364/HILAS.2022.HF5B.4},
	unique-id = {33275136},
	abstract = {Laser induced x-ray fluorescence were observed against laser polarization ellipticity. While emission from krypton peaks at linear polarization, a signature of recollision, emission from neon shows opposite trend. We attribute it to two competing processes.},
	year = {2022},
	orcid-numbers = {Filus, Zoltán/0000-0001-5674-0110; Dumergue, Mathieu/0000-0002-3698-4406; Flender, Roland/0000-0001-6970-0716; Kahaly, Subhendu/0000-0001-7600-3310}
}

@{MTMT:33274970,
	title = {Polarization Dependence of Laser Induced inner-shell excitations},
	url = {https://m2.mtmt.hu/api/publication/33274970},
	author = {Deng, Yunpei and Zeng, Zhinan and Komm, Pavel and Zheng, Yinghui and Helml, Wolfram and Xie, Xinhua and Filus, Zoltán and Dumergue, Mathieu and Flender, Roland and Kurucz, Máté and Haizer, Ludovit and Kiss, Bálint and Kahaly, Subhendu and Li, Ruxin and Marcus, Gilad},
	booktitle = {Conference on Lasers and Electro-Optics},
	doi = {10.1364/CLEO_AT.2021.JTh3A.25},
	unique-id = {33274970},
	abstract = {Laser induced x-ray fluorescence were observed against laser polarization ellipticity. While emission from krypton peaks at linear polarization, a signature of recollision, emission from neon shows opposite trend. We attribute it to two competing processes.},
	year = {2021},
	orcid-numbers = {Filus, Zoltán/0000-0001-5674-0110; Dumergue, Mathieu/0000-0002-3698-4406; Flender, Roland/0000-0001-6970-0716; Kahaly, Subhendu/0000-0001-7600-3310}
}

@{MTMT:32865017,
	title = {Non-linear materials for efficient mid-IR few cycle pulse compression},
	url = {https://m2.mtmt.hu/api/publication/32865017},
	author = {Kiss, Bálint and Flender, Roland and Kurucz, Máté and Somoskői, Tamás and Cormier, Eric},
	booktitle = {Laser-Induced Damage in Optical Materials 2021},
	doi = {10.1117/12.2602339},
	unique-id = {32865017},
	year = {2021},
	pages = {21},
	orcid-numbers = {Flender, Roland/0000-0001-6970-0716; Somoskői, Tamás/0000-0003-1696-4085}
}

@inproceedings{MTMT:32373499,
	title = {High-resolution mid-MIR spectrally resolved interferometry},
	url = {https://m2.mtmt.hu/api/publication/32373499},
	author = {Tímár-Grósz, Tímea and Kurucz, Máté and Flender, Roland and Börzsönyi, Ádám and Gimzevskis, U. and Samalius, A. and Hoff, D. and Kiss, Bálint},
	booktitle = {Nonlinear Optics and Applications XII},
	doi = {10.1117/12.2591756},
	unique-id = {32373499},
	abstract = {Spectrally resolved interferometry (SRI) is one of the most widespread methods for spectral phase characterization of optical elements. The recorded spectral fringes are usually evaluated by Fourier-transform (FT) based methods, that require high spectral resolution. Considering that most spectrometers in the mid-infrared (MIR) region have typically a few nm spectral resolution, we propose two alternative methods for measurements in this spectral region: second harmonic assisted SRI (SH-SRI) and dual-band SRI. The SH-SRI method utilizes second harmonic generation, which allows for high-precision phase retrieval by shifting the detection range from the MIR regime to the near-infrared (NIR), where high-resolution spectrometers are commercially available. The dual-band SRI method has the capabilities of the SH-SRI, while simultaneously probing the optical element at the SH frequency band as well. Using the FT method, the acquired phase can be obtained from a single interferogram at both frequency bands simultaneously, which effectively doubles the measurement bandwidth compared to the conventional and the SH-SRI without increasing the requirements on the bandwidth and the resolution of the spectrometer. To determine the performance of these new schemes, we measured the spectral phase shift of several optical windows, and concluded that SH-SRI and dual-band SRI both have higher accuracy than conventional SRI using low-resolution MIR spectrometers. We used the SH-SRI technique also to verify the phase performance of custom-made MIR dispersive mirrors. With the dispersive mirrors, we were able to compress our spectrally broadened pulses to 18.9 fs (<2 cycles) at 3170 nm central wavelength with 8.2 W average power.},
	keywords = {SPECTROSCOPY; Nonlinear optics; Phase retrieval; spectrally resolved interferometry; mid-infrared; dispersive mirror; post-compression},
	year = {2021},
	orcid-numbers = {Tímár-Grósz, Tímea/0000-0001-8345-1007; Flender, Roland/0000-0001-6970-0716}
}

@article{MTMT:32126007,
	title = {Simultaneous spectral phase shift characterization in two frequency bands},
	url = {https://m2.mtmt.hu/api/publication/32126007},
	author = {Kurucz, Máté and Flender, Roland and Tímár-Grósz, Tímea and Börzsönyi, Ádám and Kiss, Bálint},
	doi = {10.1016/j.optcom.2021.127332},
	journal-iso = {OPT COMMUN},
	journal = {OPTICS COMMUNICATIONS},
	volume = {500},
	unique-id = {32126007},
	issn = {0030-4018},
	year = {2021},
	eissn = {1873-0310},
	orcid-numbers = {Flender, Roland/0000-0001-6970-0716; Tímár-Grósz, Tímea/0000-0001-8345-1007}
}

@{MTMT:32083435,
	title = {High resolution spectrally resolved interferometry in the mid-IR},
	url = {https://m2.mtmt.hu/api/publication/32083435},
	author = {Kurucz, Máté and Flender, Roland and Tímár-Grósz, Tímea and Börzsönyi, Ádám and U., Gimzevskis and A., Samalius and D., Hoff and Kiss, Bálint},
	booktitle = {2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)},
	doi = {10.1109/CLEO/Europe-EQEC52157.2021.9541876},
	unique-id = {32083435},
	year = {2021},
	orcid-numbers = {Flender, Roland/0000-0001-6970-0716; Tímár-Grósz, Tímea/0000-0001-8345-1007}
}

@{MTMT:32083432,
	title = {Every single-shot CEP drift detection for near-infrared lasers with a modified TOUCAN method},
	url = {https://m2.mtmt.hu/api/publication/32083432},
	author = {Kurucz, Máté and Tóth, Szabolcs and Csontos, János and Kiss, Bálint and Cormier, Eric},
	booktitle = {2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)},
	doi = {10.1109/CLEO/Europe-EQEC52157.2021.9542192},
	unique-id = {32083432},
	year = {2021},
	orcid-numbers = {Tóth, Szabolcs/0000-0002-8516-3962; Csontos, János/0000-0003-2785-536X}
}

@article{MTMT:32056870,
	title = {Dispersive mirror characterization and application for mid-infrared post-compression},
	url = {https://m2.mtmt.hu/api/publication/32056870},
	author = {Flender, Roland and Kurucz, Máté and Tímár-Grósz, Tímea and Börzsönyi, Ádám and Gimzevskis, U and Samalius, A and Hoff, D and Kiss, Bálint},
	doi = {10.1088/2040-8986/abf88e},
	journal-iso = {J OPTICS-UK},
	journal = {JOURNAL OF OPTICS},
	volume = {23},
	unique-id = {32056870},
	issn = {2040-8978},
	year = {2021},
	eissn = {2040-8986},
	orcid-numbers = {Flender, Roland/0000-0001-6970-0716; Tímár-Grósz, Tímea/0000-0001-8345-1007}
}