Lasing action in water vapor induced by ultrashort laser filamentation

Shuai Yuan; Tiejun Wang; Yoshiaki Teranishi; Aravindan Sridharan; Sheng Hsien Lin; Heping Zeng; See Leang Chin

doi:10.1063/1.4809585

Lasing action in water vapor induced by ultrashort laser filamentation

Shuai Yuan, Tiejun Wang, Yoshiaki Teranishi, Aravindan Sridharan, Sheng Hsien Lin, Heping Zeng, See Leang Chin

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Abstract

The water vapor fluorescence in air from filaments generated by intense ultrashort Ti:sapphire laser pulses is experimentally studied. The backscattered fluorescence from OH shows an exponential increase with increasing filament length, indicating amplified spontaneous emission. By measuring the intensity inside the filament and the fluorescence intensity of OH, a high degree of nonlinearity is obtained, indicating a highly nonlinear field dissociation of H₂O molecule.

Original language	English
Article number	224102
Journal	Applied Physics Letters
Volume	102
Issue number	22
DOIs	https://doi.org/10.1063/1.4809585
State	Published - 3 Jun 2013

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title = "Lasing action in water vapor induced by ultrashort laser filamentation",

abstract = "The water vapor fluorescence in air from filaments generated by intense ultrashort Ti:sapphire laser pulses is experimentally studied. The backscattered fluorescence from OH shows an exponential increase with increasing filament length, indicating amplified spontaneous emission. By measuring the intensity inside the filament and the fluorescence intensity of OH, a high degree of nonlinearity is obtained, indicating a highly nonlinear field dissociation of H2O molecule.",

author = "Shuai Yuan and Tiejun Wang and Yoshiaki Teranishi and Aravindan Sridharan and {Hsien Lin}, Sheng and Heping Zeng and {Leang Chin}, See",

year = "2013",

month = jun,

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doi = "10.1063/1.4809585",

language = "English",

volume = "102",

journal = "Applied Physics Letters",

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publisher = "American Institute of Physics",

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T1 - Lasing action in water vapor induced by ultrashort laser filamentation

AU - Yuan, Shuai

AU - Wang, Tiejun

AU - Teranishi, Yoshiaki

AU - Sridharan, Aravindan

AU - Hsien Lin, Sheng

AU - Zeng, Heping

AU - Leang Chin, See

PY - 2013/6/3

Y1 - 2013/6/3

N2 - The water vapor fluorescence in air from filaments generated by intense ultrashort Ti:sapphire laser pulses is experimentally studied. The backscattered fluorescence from OH shows an exponential increase with increasing filament length, indicating amplified spontaneous emission. By measuring the intensity inside the filament and the fluorescence intensity of OH, a high degree of nonlinearity is obtained, indicating a highly nonlinear field dissociation of H2O molecule.

AB - The water vapor fluorescence in air from filaments generated by intense ultrashort Ti:sapphire laser pulses is experimentally studied. The backscattered fluorescence from OH shows an exponential increase with increasing filament length, indicating amplified spontaneous emission. By measuring the intensity inside the filament and the fluorescence intensity of OH, a high degree of nonlinearity is obtained, indicating a highly nonlinear field dissociation of H2O molecule.

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U2 - 10.1063/1.4809585

DO - 10.1063/1.4809585

M3 - Article

AN - SCOPUS:84879082732

SN - 0003-6951

VL - 102

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 22

M1 - 224102

ER -

Lasing action in water vapor induced by ultrashort laser filamentation

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