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View article: Propagation of broadband mid-infrared optical pulses in atmosphere
Propagation of broadband mid-infrared optical pulses in atmosphere Open
We study and describe the reshaping of ultrashort and broadband mid-IR optical pulses in an ambient atmosphere. While all pulse propagation undergoes dispersion and absorption, which causes pulse reshaping, the effects are strongly pronoun…
View article: Tunable UV ∼ IR frequency comb generation via high-order sideband generation
Tunable UV ∼ IR frequency comb generation via high-order sideband generation Open
We propose the generation of a widely tunable UV-to-IR frequency comb by high-order sideband generation (HSB) spectrum emitted from semiconductors. In our theoretical simulations, we demonstrate the high-order sideband signals of two serie…
View article: High-harmonic spectroscopy of quantum phase transitions in a high-Tc superconductor
High-harmonic spectroscopy of quantum phase transitions in a high-Tc superconductor Open
We report on the nonlinear optical signatures of quantum phase transitions in the high-temperature superconductor YBCO, observed through high harmonic generation. While the linear optical response of the material is largely unchanged when …
View article: High-peak-power mid-infrared OPCPAs for extreme nonlinear photonics
High-peak-power mid-infrared OPCPAs for extreme nonlinear photonics Open
In the last decades, intense carrier-envelope-phase-stable (CEP-stable) and near-single-cycle, coherent mid-infrared sources have become charming for a variety of applications in physics, chemistry and biology. In particular, those mid-inf…
View article: High harmonic spectroscopy of quantum phase transitions in a high-T$_c$ superconductor
High harmonic spectroscopy of quantum phase transitions in a high-T$_c$ superconductor Open
We report on the new non--linear optical signatures of quantum phase transitions in the high-temperature superconductor YBCO, observed through high harmonic generation. While the linear optical response of the material is largely unchanged…
View article: High-brightness seven-octave carrier envelope phase-stable light source
High-brightness seven-octave carrier envelope phase-stable light source Open
High-brightness sources of coherent and few-cycle-duration light waveforms with spectral coverage from the UV to the THz would offer unprecedented versatility and opportunities for a spectacular range of applications from bio-chemical sens…
View article: Few-cycle mid-infrared pulses from BaGa<sub>2</sub>GeSe<sub>6</sub>
Few-cycle mid-infrared pulses from BaGa<sub>2</sub>GeSe<sub>6</sub> Open
(BGGSe) is a newly developed nonlinear material that is attractive for ultrabroad frequency mixing and ultrashort pulse generation due to its comparably low dispersion and high damage threshold. A numerical study shows the m…
View article: Table-top high-energy 7 μm OPCPA and 260 mJ Ho:YLF pump laser
Table-top high-energy 7 μm OPCPA and 260 mJ Ho:YLF pump laser Open
We present a state-of-the-art compact high-energy mid-infrared (mid-IR) laser system for TW-level eight-cycle pulses at 7 μm. This system consists of an Er:Tm:Ho:fiber MOPA which serves as the seeder for a ZGP-based optical parametric chir…
View article: Infrared electric field sampled frequency comb spectroscopy
Infrared electric field sampled frequency comb spectroscopy Open
Generation and detection of single-cycle mid-infrared waveforms enables broadband, high-resolution spectroscopy across 3 to 27 μm.
View article: Infrared electric-field sampled frequency comb spectroscopy
Infrared electric-field sampled frequency comb spectroscopy Open
Molecular spectroscopy in the mid-infrared portion of the electromagnetic spectrum (3--25 um) has been a cornerstone interdisciplinary analytical technique widely adapted across the biological, chemical, and physical sciences. Applications…
View article: Amplification of high harmonics in 3D semiconductor waveguides
Amplification of high harmonics in 3D semiconductor waveguides Open
Nanoscale amplification of non-linear processes in solid-state devices opens novel applications in nano-electronics, nano-medicine or high energy conversion for example. Coupling few nano-joules laser energy at a nanometer scale for strong…
View article: High average power and single-cycle pulses from a mid-IR optical parametric chirped pulse amplifier
High average power and single-cycle pulses from a mid-IR optical parametric chirped pulse amplifier Open
In attosecond and strong-field physics, the acquisition of data in an acceptable time demands the combination of high peak power with high average power. We report a 21 W mid-IR optical parametric chirped pulse amplifier (OPCPA) that gener…
View article: Soliton-effect self-compressed single-cycle 9.6-W mid-IR pulses from a 21-W OPCPA at 3.25 μm and 160 kHz
Soliton-effect self-compressed single-cycle 9.6-W mid-IR pulses from a 21-W OPCPA at 3.25 μm and 160 kHz Open
We report a 21-W mid-IR OPCPA that generates 131-μJ and 97 fs (sub-9-cycle) pulses at 160 kHz repetition rate and at a centre wavelength of 3.25 μm. Pulse-to-pulse stability of the CEP-stable output is excellent with 0.33% rms over 288 mil…
View article: Soliton-effect self-compressed single-cycle 9.6-W mid-IR pulses from a 21-W OPCPA at 3.25 {\mu}m and 160 kHz
Soliton-effect self-compressed single-cycle 9.6-W mid-IR pulses from a 21-W OPCPA at 3.25 {\mu}m and 160 kHz Open
We report a 21-W mid-IR OPCPA that generates 131-{\mu}J and 97 fs (sub-9-cycle) pulses at 160 kHz repetition rate and at a centre wavelength of 3.25 {\mu}m. Pulse-to-pulse stability of the CEP-stable output is excellent with 0.33% rms over…