Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Adam J. Fleisher"'
Autor:
Ibrahim Sadiek, Adam J. Fleisher, Jakob Hayden, Xinyi Huang, Andreas Hugi, Richard Engeln, Norbert Lang, Jean-Pierre H. van Helden
Publikováno v:
Communications Chemistry, Vol 7, Iss 1, Pp 1-10 (2024)
Abstract Plasma-activated chemical transformations promise the efficient synthesis of salient chemical products. However, the reaction pathways that lead to desirable products are often unknown, and key quantum-state-resolved information regarding th
Externí odkaz:
https://doaj.org/article/9d6034187a8b40e7aacd820f4dd576b0
Autor:
Gar-Wing Truong, Lukas W. Perner, D. Michelle Bailey, Georg Winkler, Seth B. Cataño-Lopez, Valentin J. Wittwer, Thomas Südmeyer, Catherine Nguyen, David Follman, Adam J. Fleisher, Oliver H. Heckl, Garrett D. Cole
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract For trace gas sensing and precision spectroscopy, optical cavities incorporating low-loss mirrors are indispensable for path length and optical intensity enhancement. Optical interference coatings in the visible and near-infrared (NIR) spect
Externí odkaz:
https://doaj.org/article/f3e66698d2ca4f60924e9d7d2a2aff7c
Autor:
Daniel Lisak, Dominik Charczun, Akiko Nishiyama, Thibault Voumard, Thibault Wildi, Grzegorz Kowzan, Victor Brasch, Tobias Herr, Adam J. Fleisher, Joseph T. Hodges, Roman Ciuryło, Agata Cygan, Piotr Masłowski
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-14 (2022)
Abstract 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 performed with the multiplexing advantages of direct frequency co
Externí odkaz:
https://doaj.org/article/4b33d58e1f9f45059c40cfbb2975bd35
Autor:
Agata Cygan, Adam J. Fleisher, Roman Ciuryło, Keith A. Gillis, Joseph T. Hodges, Daniel Lisak
Publikováno v:
Communications Physics, Vol 4, Iss 1, Pp 1-9 (2021)
Cavity-enhanced spectroscopy is used to analyse light–matter interactions in fields such as ultracold chemistry and planetary science but measurement performance can be hampered by nonlinearities and long acquisition times. Here, the authors report
Externí odkaz:
https://doaj.org/article/a47eee69dac84d8e84151109829679d3
We report a precision realization of photonic thermometry using dual-comb spectroscopy to interrogate a $\pi$-phase-shifted fiber Bragg grating. We achieve read-out stability of 7.5 mK at 1 s and resolve temperature changes of similar magnitude--suff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4e108206c454a38f0c0c76fb36dacfd
http://arxiv.org/abs/2212.04375
http://arxiv.org/abs/2212.04375
Autor:
Abneesh Srivastava, Adam J. Fleisher, Hongming Yi, Nikolai F. Zobov, Oleg L. Polyansky, Joseph T. Hodges
Publikováno v:
Nat Phys
Measurements of isotope ratios are predominantly made with reference to standard specimens that have been characterized in the past. In the 1950s, the carbon isotope ratio was referenced to a belemnite sample collected by Heinz Lowenstam and Harold U
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba4453a40e30f3cc68277f85ce33957d
https://doi.org/10.1038/s41567-021-01226-y
https://doi.org/10.1038/s41567-021-01226-y
Publikováno v:
Conference on Lasers and Electro-Optics.
We present transition intensity measurements for the 20011 ← 00001 band of carbon dioxide to test quantum theory and support sensing and isotopic analysis. Preliminarily, a relative combined standard uncertainty of ≤ 0.2 % was achieved.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26b9369499b2b61d97bdce6f7c5d2c40
https://doi.org/10.1364/cleo_si.2022.sf3f.2
https://doi.org/10.1364/cleo_si.2022.sf3f.2
Advances in optical technology have led to the commercialization and widespread use of broadband optical frequency combs for multiplexed measurements of trace-gas species. Increasingly available in the mid-infrared spectral region, these devices can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8974783defce9bc22b844f962d13f14
https://doi.org/10.5194/egusphere-egu21-12235
https://doi.org/10.5194/egusphere-egu21-12235
Publikováno v:
J Quant Spectrosc Radiat Transf
Using frequency-agile rapid scanning cavity ring-down spectroscopy, we measured line intensities and line shape parameters of 14N216O in air in the (4200)←(0000) and (5000)←(0000) bands near 1.6 μm. The absorption spectra were modeled with multi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e156c73d268a971363f55f718221c9d5
https://europepmc.org/articles/PMC9706648/
https://europepmc.org/articles/PMC9706648/
Autor:
Adam J. Fleisher, Daniel Lisak, Roman Ciuryło, Joseph T. Hodges, Agata Cygan, Keith A. Gillis
Publikováno v:
Communications Physics, Vol 4, Iss 1, Pp 1-9 (2021)
Measurements of ultrahigh-fidelity absorption spectra can help validate quantum theory, engineer ultracold chemistry, and remotely sense atmospheres. Recent achievements in cavity-enhanced spectroscopy using either frequency-based dispersion or time-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42c2a3b8ebe7e92513fc0cfecbb92fab
https://doi.org/10.1038/s42005-021-00517-3
https://doi.org/10.1038/s42005-021-00517-3