Remote sensing of trace methane using mobile femtosecond laser system of T&amp;T Lab

Kamali, Y.; Daigle, J.-F.; Théberge, F.; Châteauneuf, Marc; Azarm, A.; Chen, Y.; Marceau, Claude; Lessard, Simon; Lessard, F.; Roy, G.; Dubois, Jacques; Chin, See Leang

doi:10.1016/j.optcom.2009.02.017

Cited by 20 publications

(13 citation statements)

References 22 publications

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“…Using a focusing telescopic system as described above for the control of multiple filaments, the beam diameter at the focal zone at a few tens of meters away in the cold open field is roughly twice as large as compared to the case when the heating system is turned off. Some of the remote sensing results under such severe conditions are described in Kamali et al, 2009b.…”

Section: Long Distance Multiple Filamentation Controlmentioning

confidence: 99%

Femtosecond Laser Filamentation

Chin¹

2010

Springer Series on Atomic, Optical, and Plasma Physics

280

243

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Section: Long Distance Multiple Filamentation Controlmentioning

confidence: 99%

Femtosecond Laser Filamentation

Chin¹

2010

Springer Series on Atomic, Optical, and Plasma Physics

280

243

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“…The physics behind these highly nonlinear processes has been studied extensively [3][4][5][6] and is still being investigated. WLC can, in principle, be utilized in a variety of applications such as remote sensing [7] and single-cycle pulse generation [8]. Of specific interest to us, WLC can be used for nonlinear spectroscopy, where the high spectral irradiance, ultra-broadband source of radiation confined in a single beam can replace conventional tunable sources of radiation such as optical parametric generators/amplifiers (OPGs/OPAs).…”

Section: Introductionmentioning

confidence: 99%

Energy and spectral enhancement of femtosecond supercontinuum in a noble gas using a weak seed

Ensley¹,

Fishman²,

Webster³

et al. 2011

Opt. Express

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We experimentally demonstrate that the use of a weak seed pulse of energy less than 0.4% of the pump results in a spectral energy enhancement that spans over 2 octaves and a total energy enhancement of more than 3 times for supercontinua generated by millijoule level femtosecond pulses in Krypton gas. Strong four-wave mixing of the pump-seed pulse interacting in the gas is observed. The spectral irradiance generated from the seeding process is sufficiently high to use white-light continuum as an alternative to conventional tunable sources of radiation for applications such as nonlinear optical spectroscopy.

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“…Atmospheric applications have been investigated by several groups, with even real--scale outdoor experiments allowed by the mobile--terawatt laser Teramobile [46] or the T&T lab [57]. For example, the Teramobile produces 800 nm pulses of up to 350 mJ energy in pulses as short as 70 fs, at a repetition rate of 10 Hz.…”

Section: Ii2 Laser Filamentationmentioning

confidence: 99%