Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Kowzan, Grzegorz"'
Autor:
Sadiek, Ibrahim, Puth, Alexander, Kowzan, Grzegorz, Nishiyama, Akiko, Klose, Sarah-Johanna, Röpcke, Jürgen, Lang, Norbert, Masłowski, Piotr, van Helden, Jean-Pierre H.
Publikováno v:
Plasma Sources Science and Technology 33 (2024) 075011
Non-thermal molecular plasmas play a crucial role in numerous industrial processes and hold significant potential for driving essential chemical transformations. Accurate information about the molecular composition of the plasmas and the distribution
Externí odkaz:
http://arxiv.org/abs/2403.15568
Autor:
Cygan, Agata, Wójtewicz, Szymon, Jóźwiak, Hubert, Kowzan, Grzegorz, Stolarczyk, Nikodem, Bielska, Katarzyna, Wcisło, Piotr, Ciuryło, Roman, Lisak, Daniel
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 precision, below 0.01 permille, but its accuracy is strongly dependent on t
Externí odkaz:
http://arxiv.org/abs/2403.01961
Autor:
Nishiyama, Akiko, Kowzan, Grzegorz, Charczun, Dominik, Ciuryło, Roman, Coluccelli, Nicola, Masłowski, Piotr
Publikováno v:
Measurement 227 (2024) 114273
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${_2}$, which is crucial for atmospheric science and astronomical observa
Externí odkaz:
http://arxiv.org/abs/2402.10509
Autor:
Silfies, Myles C., Mehmood, Arshad, Kowzan, Grzegorz, Hohenstein, Edward G., Levine, Benjamin G., Allison, Thomas K.
Publikováno v:
J. Chem. Phys. 159, 104304 (2023)
Salicylidenaniline (SA) is an archetypal system for excited-state intramolecular proton transfer (ESIPT) in non-planar systems. Multiple channels for relaxation involving both the keto and enol forms have been proposed after excitation to S$_1$ with
Externí odkaz:
http://arxiv.org/abs/2306.05645
Autor:
Kowzan, Grzegorz, Allison, Thomas K.
Publikováno v:
J. Phys. Chem. Lett. 13, 11650 (2022)
Recent advancements in infrared frequency combs will enable recording of coherent two-dimensional infrared spectra of gas-phase molecules with rotational resolution (RR2DIR). We describe how RR2DIR spectra can be controlled with polarization to enhan
Externí odkaz:
http://arxiv.org/abs/2206.10492
Autor:
Kowzan, Grzegorz, Allison, Thomas K.
Publikováno v:
Phys. Rev. A 106, 042819 (2022)
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 resolution. Only recently, its potential to study gas-phase dynamics is begin
Externí odkaz:
http://arxiv.org/abs/2206.10488
Publikováno v:
Phys. Chem. Chem. Phys. 23, 9743 (2021)
Broadband ultrafast optical spectroscopy methods, such as transient absorption spectroscopy and 2D spectroscopy, are widely used to study molecular dynamics. However, these techniques are typically restricted to optically thick samples, such as solid
Externí odkaz:
http://arxiv.org/abs/2102.04981
Autor:
Silfies, Myles C., Kowzan, Grzegorz, Chen, Yuning, Lewis, Neomi, Hou, Ryan, Baehre, Robin, Gross, Tobias, Allison, Thomas K.
Publikováno v:
Opt. Lett. 45, 2123 (2020)
We describe the cavity-enhancement of frequency combs over a wide tuning range of 450-700 nm (> 7900 cm$^{-1}$), covering nearly the entire visible spectrum. Tunable visible frequency combs from a synchronously-pumped optical parametric oscillator ar
Externí odkaz:
http://arxiv.org/abs/2001.10680
Publikováno v:
Appl. Phys. B. 125, 81 (2019)
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 visible spectral range. By intracavity doubling both the signal and id
Externí odkaz:
http://arxiv.org/abs/1901.08099
Autor:
Maslowski, Piotr, Lee, Kevin F., Johansson, Alexandra C., Khodabakhsh, Amir, Kowzan, Grzegorz, Rutkowski, Lucile, Mills, Andrew A., Mohr, Christian, Jiang, Jie, Fermann, Martin E., Foltynowicz, Aleksandra
Publikováno v:
Phys. Rev. A 93, 021802 (2016)
Fourier transform spectroscopy based on incoherent light sources is a well-established tool in research fields from molecular spectroscopy and atmospheric monitoring to material science and biophysics. It provides broadband molecular spectra and info
Externí odkaz:
http://arxiv.org/abs/1505.07706