Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Maria Ruchkina"'
Autor:
Maria Ruchkina, Dina Hot, Pengji Ding, Ali Hosseinnia, Per-Erik Bengtsson, Zhongshan Li, Joakim Bood, Anna-Lena Sahlberg
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
Abstract Laser-induced grating spectroscopy (LIGS) is for the first time explored in a configuration based on the crossing of two focused femtosecond (fs) laser pulses (800-nm wavelength) and a focused continuous-wave (cw) laser beam (532-nm waveleng
Externí odkaz:
https://doaj.org/article/a14b14efa625449a8fadee4b0ad17762
Publikováno v:
Hosseinnia, A, Raveesh, M, Dominguez, A, Ruchkina, M, Linne, M & Bood, J 2022, ' Single-shot coherent control of molecular rotation by fs/ns rotational coherent anti-Stokes Raman spectroscopy ', Optics Express, vol. 30, no. 18, pp. 32204-32214 . https://doi.org/10.1364/OE.459396
We present a novel method, to our knowledge, to control the shape of the spectra using 2-beam hybrid femtosecond (fs)/nanosecond (ns) coherent anti-Stokes Raman scattering (RCARS). The method is demonstrated experimentally and theoretically by utiliz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4eff1e1d609641e4d0757d46164a8821
https://hdl.handle.net/20.500.11820/f532ced1-2b6a-4560-9801-771279970725
https://hdl.handle.net/20.500.11820/f532ced1-2b6a-4560-9801-771279970725
Publikováno v:
Optics Express. 31:12932
A method based on femtosecond two-photon excitation has been developed for simultaneous visualization of interference-free fluorescence of H and O atoms in turbulent flames. This work shows pioneering results on single-shot simultaneous imaging of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b509b1f474a2e86f7af31b592cae9e9b
https://doi.org/10.1364/oe.479562
https://doi.org/10.1364/oe.479562
Publikováno v:
Proceedings of the Combustion Institute. 38:1843-1850
We report thermometry and new Raman linewidth data using a novel method for time-domain rotational coherent anti-Stokes Raman spectroscopy (RCARS) on single-shot basis. The coherences are generated by two fs pulses and probed by a ns pulse. The resul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffcca8349da4a3b1b4f539795a66bef5
https://doi.org/10.1016/j.proci.2020.09.010
https://doi.org/10.1016/j.proci.2020.09.010
Publikováno v:
Physical Review A; 105(1), no 013702 (2022)
Physical Review A
Physical Review A
Cavity-free lasing generation from gas constituents has been studied in the past decade since it promises great potentials in remote sensing and optical diagnostics techniques. Here we report on experimental investigations of temporal characteristics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02d8b1d9fa126f5e9b1b516f1da69d80
https://lup.lub.lu.se/record/7d464b2d-b46d-45be-9f16-f1a2067f388a
https://lup.lub.lu.se/record/7d464b2d-b46d-45be-9f16-f1a2067f388a
Publikováno v:
Optical Sensors and Sensing Congress 2022 (AIS, LACSEA, Sensors, ES).
Quantum control is implemented in a 2-beam fs/ns rotational CARS setup via a second control pulse with variable delay. The potential of the concept for improved diagnostics is demonstrated by species-selective enhancement/annihilation via field-free
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af79ace32e659d9700ed1a1b74a79fd0
https://doi.org/10.1364/lacsea.2022.lm2b.2
https://doi.org/10.1364/lacsea.2022.lm2b.2
Single-shot, spatially-resolved stand-off detection of atomic hydrogen via backward lasing in flames
Publikováno v:
Proceedings of the Combustion Institute; 37(2), pp 1281-1288 (2019)
Proceedings of the Combustion Institute
Proceedings of the Combustion Institute
We report on an experimental demonstration of spatially-resolved detection of atomic hydrogen in flames using a single-ended configuration yielding 656-nm lasing in the backward direction upon 2-photon pumping with 205-nm femtosecond laser pulses. Sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6073e02a0087271ea4ddbc0c766be0c
https://doi.org/10.1016/j.proci.2018.06.145
https://doi.org/10.1016/j.proci.2018.06.145
Autor:
Pengji Ding, Maria Ruchkina, Davide Del Cont-Bernard, Andreas Ehn, Deanna A Lacoste, Joakim Bood
Publikováno v:
Journal of Physics D: Applied Physics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=r3c4b2081b22::9ab761350bb127eb2fd49b8207e91a9c
Publikováno v:
Optics Express; 27(18), pp 25656-25669 (2019)
Optics Express
Optics Express
A model based on rate-equation analysis has been developed for simulation of two-photon-excited laser-induced fluorescence of carbon monoxide (CO) in the Hopfield-Birge band at 230 nm. The model has been compared with experimental fluorescence profil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17653dabe02ec0640b3b1a71283f9909
https://pubmed.ncbi.nlm.nih.gov/31510434
https://pubmed.ncbi.nlm.nih.gov/31510434
Publikováno v:
Optics Letters; 44(9), pp 2374-2377 (2019)
Optics Letters
Optics Letters
By aiming to establish single-ended standoff combustion diagnostics, bidirectional lasing emissions of atomic hydrogen at 656 nm wavelength have been generated via two-photon resonant excitation by focusing 205 nm femtosecond laser pulses into a prem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3574c01fa25ab41d8c99000882a5635b
https://lup.lub.lu.se/record/3d00fc4c-6f02-4553-af6b-d86b0acc0bf8
https://lup.lub.lu.se/record/3d00fc4c-6f02-4553-af6b-d86b0acc0bf8