From femtosecond to attosecond pulses

AV Kim, MY Ryabikin, AM Sergeev - Physics-Uspekhi, 1999 - ufn.ru
The modern level of optical technologies permits the generation of laser pulses of less than
5 fs duration [1], which is equal only to several optical cycles. The generation of such short …

Blue-shifted third-harmonic generation and correlated self-guiding during ultrafast barrier suppression ionization of subatmospheric density noble gases

CW Siders, NC Turner III, MC Downer… - Journal of the Optical …, 1996 - opg.optica.org
The generation of frequency upshifted, pressure-tunable third-harmonic pulses during
ultrafast ionization of subatmospheric noble gases at peak intensity 10^ 16 W/cm^ 2 is …

Third-harmonic generation in air by use of femtosecond radiation in tight-focusing conditions

RA Ganeev, M Suzuki, M Baba, H Kuroda… - Applied optics, 2006 - opg.optica.org
Third-harmonic generation (THG) in air in tight-focusing conditions is presented. Variation of
the pulse duration supplied optimal conditions for THG by femtosecond pulses that varied in …

Formation of ultrashort pulses via quantum interference between Stark-split atomic transitions in a hydrogenlike medium

VA Antonov, YV Radeonychev, O Kocharovskaya - Physical Review A—Atomic …, 2013 - APS
We derive the analytical solution uncovering the origin of the ultrashort pulse formation from
the resonant radiation in a hydrogenlike medium [YV Radeonychev, VA Polovinkin, and O …

Spectral, temporal, and spatial characteristics of plasma-induced spectral blue shifting and its application to femtosecond pulse measurement

SP Le Blanc, R Sauerbrey - JOSA B, 1996 - opg.optica.org
The spectral, temporal, and spatial characteristics of plasma-induced spectral blue shifting in
atmospheric-density rare gases were investigated by a two-color pump–probe technique …

Effect of plasma-core-induced self-guiding on phase matching of high-order harmonic generation in gases

B Major, K Kovács, V Tosa, P Rudawski, A L'Huillier… - JOSA B, 2019 - opg.optica.org
In this work, we numerically study a self-guiding process in which ionization plays a
dominant role and analyze its effect on high-order harmonic generation (HHG) in gases …

Third-harmonic generation at atmospheric pressure in methane by use of intense femtosecond pulses in the tight-focusing limit

G Marcus, A Zigler, Z Henis - JOSA B, 1999 - opg.optica.org
An experimental study of third-harmonic generation in methane with a 100-fs, 820-nm, Ti:
sapphire laser in a tight focusing geometry is presented. The harmonic intensity and …

Combined action of the bound-electron nonlinearity and the tunnel-ionization current in low-order harmonic generation in noble gases

U Sapaev, A Husakou, J Herrmann - Optics express, 2013 - opg.optica.org
We study numerically low-order harmonic generation in noble gases pumped by intense
femtosecond laser pulses in the tunneling ionization regime. We analyze the influence of the …

Generation of a wakefield during gas ionization

NE Andreev, ME Veisman, MG Cadjan… - Plasma Physics …, 2000 - Springer
One-dimensional equations are derived that describe the hydrodynamic and electrodynamic
properties of a plasma created through gas ionization by a short intense laser pulse …

Ultra-broadband water window supercontinuum generation with high efficiency in a three-color laser field

L He, Y Li, Q Zhang, P Lu - Optics Express, 2013 - opg.optica.org
We propose an efficient method to generate an ultra-broadband supercontinuum by using a
three-color field synthesized by a 1600 nm driving pulse and two weak (3200 nm and 400 …