Femtosecond two-photon-excited backward lasing of atomic hydrogen in a flame
(2018) In Optics Letters 43(5). p.1183-1186- Abstract
We report on an observation of bi-directional 656 nm lasing action of atomic hydrogen in a premixed CH4∕air flame induced by resonant femtosecond 205 nm two-photon excitation. In particular, the backward-propagating lasing pulse is characterized in the spatial and temporal domains for the sake of a single-ended diagnostic. Its picosecond-scale duration and smooth temporal profile enable spatially resolved detection of hydrogen atoms in the millimeter range, which is successfully demonstrated using two narrow welding flames.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/60390fa0-87d9-4a69-ae8d-7b7d703e7c4f
- author
- Ding, Pengji LU ; Ruchkina, Maria LU ; Yi, L. I.U. ; Alden, Marcus LU and Bood, Joakim LU
- organization
- publishing date
- 2018-03-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Optics Letters
- volume
- 43
- issue
- 5
- pages
- 4 pages
- publisher
- Optical Society of America
- external identifiers
-
- scopus:85042689281
- pmid:29489811
- ISSN
- 0146-9592
- DOI
- 10.1364/OL.43.001183
- language
- English
- LU publication?
- yes
- id
- 60390fa0-87d9-4a69-ae8d-7b7d703e7c4f
- date added to LUP
- 2018-03-16 15:52:00
- date last changed
- 2024-09-16 18:44:40
@article{60390fa0-87d9-4a69-ae8d-7b7d703e7c4f, abstract = {{<p>We report on an observation of bi-directional 656 nm lasing action of atomic hydrogen in a premixed CH<sub>4</sub>∕air flame induced by resonant femtosecond 205 nm two-photon excitation. In particular, the backward-propagating lasing pulse is characterized in the spatial and temporal domains for the sake of a single-ended diagnostic. Its picosecond-scale duration and smooth temporal profile enable spatially resolved detection of hydrogen atoms in the millimeter range, which is successfully demonstrated using two narrow welding flames.</p>}}, author = {{Ding, Pengji and Ruchkina, Maria and Yi, L. I.U. and Alden, Marcus and Bood, Joakim}}, issn = {{0146-9592}}, language = {{eng}}, month = {{03}}, number = {{5}}, pages = {{1183--1186}}, publisher = {{Optical Society of America}}, series = {{Optics Letters}}, title = {{Femtosecond two-photon-excited backward lasing of atomic hydrogen in a flame}}, url = {{https://lup.lub.lu.se/search/files/119484384/ol_43_5_1183.pdf}}, doi = {{10.1364/OL.43.001183}}, volume = {{43}}, year = {{2018}}, }