Rotational Coherence Encoded in an “Air-Laser” Spectrum of Nitrogen Molecular Ions in an Intense Laser Field
We investigate lasing action in aligned nitrogen molecular ions (N_{2}^{+}) produced in an intense laser field. We find that, besides the population inversion between the B^{2}Σ_{u}^{+}-X^{2}Σ_{g}^{+} states, which is responsible for the observed simulated amplification of a seed pulse, a rotational...
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American Physical Society
2013-10-01
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Series: | Physical Review X |
Online Access: | http://doi.org/10.1103/PhysRevX.3.041009 |
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doaj-3d568fc60339410f857227c4d1e65e922020-11-24T22:15:47ZengAmerican Physical SocietyPhysical Review X2160-33082013-10-013404100910.1103/PhysRevX.3.041009Rotational Coherence Encoded in an “Air-Laser” Spectrum of Nitrogen Molecular Ions in an Intense Laser FieldHaisu ZhangChenrui JingJinping YaoGuihua LiBin ZengWei ChuJielei NiHongqiang XieHuailiang XuSee Leang ChinKaoru YamanouchiYa ChengZhizhan XuWe investigate lasing action in aligned nitrogen molecular ions (N_{2}^{+}) produced in an intense laser field. We find that, besides the population inversion between the B^{2}Σ_{u}^{+}-X^{2}Σ_{g}^{+} states, which is responsible for the observed simulated amplification of a seed pulse, a rotational wave packet in the ground vibrational state (v=0) of the excited electronic B^{2}Σ_{u}^{+} state has been created in N_{2}^{+}. The rotational coherence can faithfully encode its characteristics into the amplified seed pulses, enabling reconstruction of rotational wave packets of molecules in a single-shot detection manner from the frequency-resolved laser spectrum. Our results suggest that the air laser can potentially provide a promising tool for remote characterization of coherent molecular rotational wave packets.http://doi.org/10.1103/PhysRevX.3.041009 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Haisu Zhang Chenrui Jing Jinping Yao Guihua Li Bin Zeng Wei Chu Jielei Ni Hongqiang Xie Huailiang Xu See Leang Chin Kaoru Yamanouchi Ya Cheng Zhizhan Xu |
spellingShingle |
Haisu Zhang Chenrui Jing Jinping Yao Guihua Li Bin Zeng Wei Chu Jielei Ni Hongqiang Xie Huailiang Xu See Leang Chin Kaoru Yamanouchi Ya Cheng Zhizhan Xu Rotational Coherence Encoded in an “Air-Laser” Spectrum of Nitrogen Molecular Ions in an Intense Laser Field Physical Review X |
author_facet |
Haisu Zhang Chenrui Jing Jinping Yao Guihua Li Bin Zeng Wei Chu Jielei Ni Hongqiang Xie Huailiang Xu See Leang Chin Kaoru Yamanouchi Ya Cheng Zhizhan Xu |
author_sort |
Haisu Zhang |
title |
Rotational Coherence Encoded in an “Air-Laser” Spectrum of Nitrogen Molecular Ions in an Intense Laser Field |
title_short |
Rotational Coherence Encoded in an “Air-Laser” Spectrum of Nitrogen Molecular Ions in an Intense Laser Field |
title_full |
Rotational Coherence Encoded in an “Air-Laser” Spectrum of Nitrogen Molecular Ions in an Intense Laser Field |
title_fullStr |
Rotational Coherence Encoded in an “Air-Laser” Spectrum of Nitrogen Molecular Ions in an Intense Laser Field |
title_full_unstemmed |
Rotational Coherence Encoded in an “Air-Laser” Spectrum of Nitrogen Molecular Ions in an Intense Laser Field |
title_sort |
rotational coherence encoded in an “air-laser” spectrum of nitrogen molecular ions in an intense laser field |
publisher |
American Physical Society |
series |
Physical Review X |
issn |
2160-3308 |
publishDate |
2013-10-01 |
description |
We investigate lasing action in aligned nitrogen molecular ions (N_{2}^{+}) produced in an intense laser field. We find that, besides the population inversion between the B^{2}Σ_{u}^{+}-X^{2}Σ_{g}^{+} states, which is responsible for the observed simulated amplification of a seed pulse, a rotational wave packet in the ground vibrational state (v=0) of the excited electronic B^{2}Σ_{u}^{+} state has been created in N_{2}^{+}. The rotational coherence can faithfully encode its characteristics into the amplified seed pulses, enabling reconstruction of rotational wave packets of molecules in a single-shot detection manner from the frequency-resolved laser spectrum. Our results suggest that the air laser can potentially provide a promising tool for remote characterization of coherent molecular rotational wave packets. |
url |
http://doi.org/10.1103/PhysRevX.3.041009 |
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