Remote sensing of the atmosphere using ultrashort laser pulses

Rairoux, P.; Schillinger, H.; Niedermeier, S.; Rodríguez, Miguel; Ronneberger, F.; Sauerbrey, R.; Stein, B.; Waite, Dennis E.; Wedekind, C.; Wille, H.; Wöste, L.; Ziener, C.

doi:10.1007/s003400000375

Cited by 275 publications

(112 citation statements)

References 3 publications

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“…There are many reasons for this interest ranging from application possibilities such as localizing ultrashort laser pulses over long propagation distances [5], white-light laser sources for parametric amplification [6] or spectroscopy [7,8] or the formal analogy with the equations that describe nonlinear wave collapse in other systems, such as Bose-Einstein condensates [9], that are experimentally less accessible. Numerical investigation of optical wave collapse is usually carried out starting from the nonlinear Schrödinger equation (NLSE) that describes the spatial evolution of a beam considering diffraction and a self-focusing term that originates from the real part of the third-order medium Kerr nonlinearity (n 2 ).…”

Section: Introductionmentioning

confidence: 99%

Far-field spectral characterization of conical emission and filamentation in Kerr media

et al. 2005

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By use of an imaging spectrometer we map the far-field (θ − λ) spectra of 200 fs optical pulses that have undergone beam collapse and filamentation in a Kerr medium. By studying the evolution of the spectra with increasing input power and using a model based on stationary linear asymptotic wave modes, we are able to trace a consistent model of optical beam collapse high-lighting the interplay between conical emission, multiple pulse splitting and other effects such as spatial chirp.

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Section: Introductionmentioning

confidence: 99%

Far-field spectral characterization of conical emission and filamentation in Kerr media

et al. 2005

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“…The optical intensity of pulse laser required in the TOF-LRF strongly depends on a round trip distance [6,22]. For the 200-m round trip distance, however, high power is not necessary to the pulse laser because of a relatively short distance of the round trip, and the effect of nonlinear refractive index of air on the measurement error of the round trip distance will be negligible.…”

Section: Resultsmentioning

confidence: 99%

Influence of Diverse Atmospheric Conditions on Optical Properties of a Pulse Laser in a Time-of-Flight Laser Range Finder

Shim¹,

Kwon²,

Choi³

et al. 2015

Journal of the Optical Society of Korea

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We investigate the propagation characteristics of a pulse laser in a time-of-flight laser range finder (TOF-LRF) system with variations in atmospheric conditions, such as temperature, pressure, relative humidity, and the concentration of CO2. The measurement error of distance related with the group velocity change in the TOF-LRF system is analyzed by considering the refractive index of the standard atmosphere with variations in atmospheric conditions. The dependence of the pulse width broadening induced by chromatic dispersion of the standard atmosphere on the operating wavelength and the initial pulse width of the light sources is discussed. The transmission of air with variations in the relative humidity or the concentration of CO2 is analyzed by using different values of absorption coefficients depending on the operation wavelength of the light source in the TOF-LRF system.

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“…[15,16]), which is known as intensity clamping. The intensity of filament is high enough to stimulate and ionize air molecule thus emitting the characteristic spectral line of atoms and molecules, which has found applications in sensing atmospheric trace species [9][10][11] . In previous works, experimental research in the field of filamentation created filaments typically a few metres in the laboratory [17][18][19] and over hundreds of metres Correspondence to: S. Li and M. Jin, Institute of Atomic and Molecular Physics, Jilin University, Changchun, Jilin Province 130012, China.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen fluorescence induced by the femtosecond intense laser pulses in air

et al. 2016

High Pow Laser Sci Eng

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Our experiments show that external focusing and initial laser energy strongly influences filament generated by the femtosecond Ti-sapphire laser in air. The experimental measurements show the filament length can be extended both by increasing the laser energy and focal length of focusing lens. On the other hand, the plasma fluorescence emission can be enhanced by increasing the laser energy with fixed focal length or decreasing the focal length. In addition, the collapse distance measured experimentally are larger than the calculated ones owing to the group-velocity-dispersion effect. In addition, we find that the line widths of the spectral lines from N 2 is independent of filament positions, laser energies and external focusing.

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Remote sensing of the atmosphere using ultrashort laser pulses

Cited by 275 publications

References 3 publications

Far-field spectral characterization of conical emission and filamentation in Kerr media

Far-field spectral characterization of conical emission and filamentation in Kerr media

Influence of Diverse Atmospheric Conditions on Optical Properties of a Pulse Laser in a Time-of-Flight Laser Range Finder

Nitrogen fluorescence induced by the femtosecond intense laser pulses in air

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