173 citations · 319 across the 15 of their papers we have counts for
16 papers
Benchmark measurements of absolute frequencies and collisional line-shape parameters in the CO-Ar system using comb-based FTS
Akiko Nishiyama, Grzegorz Kowzan, Dominik Charczun +2
We report absolute frequency measurements of the CO fundamental band, together with high-precision Ar-induced collisional line-shape parameters using comb-based Fourier-transform s…
Size characterization of neutral rare-gas clusters based on time-resolved polarization anisotropy measurements
Arne Morlok, Grzegorz Kowzan, Yilin Li +3
The size determination of neutral clusters is experimentally challenging. In particular, weakly-bound rare-gas clusters tend to fragment upon ionization, resulting in systematic er…
Cavity-enhanced spectroscopy in the deep cryogenic regime -- new hydrogen technologies for quantum sensing
Kamil Stankiewicz, Marcin Makowski, Michał Słowiński +13
Spectrometers based on high-finesse optical cavities have proven to be powerful tools for applied and fundamental studies. Extending this technology to the deep cryogenic regime is…
ANDES, the high resolution spectrograph for the ELT: science goals, project overview and future developments
A. Marconi, M. Abreu, V. Adibekyan +286
The first generation of ELT instruments includes an optical-infrared high-resolution spectrograph, indicated as ELT-HIRES and recently christened ANDES (ArmazoNes high Dispersion E…
Precision spectroscopy of non-thermal molecular plasmas using mid-infrared optical frequency comb Fourier transform spectroscopy
Ibrahim Sadiek, Alexander Puth, Grzegorz Kowzan +6
Non-thermal molecular plasmas play a crucial role in numerous industrial processes and hold significant potential for driving essential chemical transformations. Accurate informati…
Heterodyne dispersive cavity ring-down spectroscopy exploiting eigenmode frequencies for high-fidelity measurements
Agata Cygan, Szymon Wójtewicz, Hubert Jóźwiak +6
Measuring low light absorption with combined uncertainty < 1 permille is crucial in a wide range of applications. Popular cavity ring-down spectroscopy can provide ultra-high preci…
Line-shape study of CO perturbed by N with mid-infrared frequency comb-based Fourier-transform spectroscopy
Akiko Nishiyama, Grzegorz Kowzan, Dominik Charczun +3
We developed a mid-infrared optical frequency comb-based Fourier-transform spectrometer and performed a line-shape study of the fundamental vibrational band of CO perturbed by N${_…
Ultrafast internal conversion and photochromism in gas-phase salicylideneaniline
Myles C. Silfies, Arshad Mehmood, Grzegorz Kowzan +3
Salicylidenaniline (SA) is an archetypal system for excited-state intramolecular proton transfer (ESIPT) in non-planar systems. Multiple channels for relaxation involving both the…
Controlling rotationally-resolved two-dimensional infrared spectra with polarization
Grzegorz Kowzan, Thomas K. Allison
Recent advancements in infrared frequency combs will enable recording of coherent two-dimensional infrared spectra of gas-phase molecules with rotational resolution (RR2DIR). We de…
Theory of rotationally resolved two-dimensional infrared spectroscopy including polarization dependence and rotational coherence dynamics
Grzegorz Kowzan, Thomas K. Allison
Two-dimensional infrared (2DIR) spectroscopy is widely used to study molecular dynamics but it is typically restricted to solid and liquid phase samples and modest spectral resolut…
Dual-comb cavity ring-down spectroscopy
D. Lisak, D. Charczun, A. Nishiyama +10
Cavity ring-down spectroscopy is a ubiquitous optical method used to study light-matter interactions with high resolution, sensitivity and accuracy. However, it has never been perf…
Broadband cavity-enhanced ultrafast spectroscopy
Myles C. Silfies, Grzegorz Kowzan, Neomi Lewis +1
Broadband ultrafast optical spectroscopy methods, such as transient absorption spectroscopy and 2D spectroscopy, are widely used to study molecular dynamics. However, these techniq…
Widely tunable cavity-enhanced frequency combs
Myles C. Silfies, Grzegorz Kowzan, Yuning Chen +5
We describe the cavity-enhancement of frequency combs over a wide tuning range of 450-700 nm (> 7900 cm), covering nearly the entire visible spectrum. Tunable visible freque…
Ultra-high finesse cavity-enhanced spectroscopy for accurate tests of quantum electrodynamics for molecules
M. Zaborowski, M. Słowiński, K. Stankiewicz +11
We report the most accurate measurement of the position of the weak quadrupole S(2) 2-0 line in D. The spectra were collected with a frequency-stabilized cavity ring-down spect…
Tunable visible frequency combs from a Yb-fiber-laser-pumped optical parametric oscillator
Yuning Chen, Myles C. Silfies, Grzegorz Kowzan +2
We present a 100 MHz repetition rate Yb-fiber-laser-pumped synchronously pumped optical parametric oscillator (SPOPO) delivering tunable frequency combs covering almost the entire…
Surpassing the Path-Limited Resolution of a Fourier Transform Spectrometer with Frequency Combs
Piotr Maslowski, Kevin F. Lee, Alexandra C. Johansson +8
Fourier transform spectroscopy based on incoherent light sources is a well-established tool in research fields from molecular spectroscopy and atmospheric monitoring to material sc…