&lt;title&gt;Toward a 100-TW 300-fs glass laser&lt;/title&gt;

Rouyer, C.; Blanchot, N.; Allais, I.; Mazataud, E.; Miquel, J.L.; Nail, M.; Pierre, Andrew J.; Sauteret, C.

doi:10.1117/12.206421

Cited by 1 publication

(2 citation statements)

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“…This means that there will be a driving electric field of amplitude that the electrons on the surface of the plasma can interact with. Start with Poisson's equation at the surface: (12) Now we know that electrons are dragged out into vacuum, in a distance , according to the electric field given above. Setting these two values of the field equal, one can solve for the number of electrons pulled out into vacuum per unit area (13) The energy absorbed from the laser light by the electrons is just (14) so that the power absorbed, per unit area, is just given as (15) where we used (13) above.…”

Section: "Not-so-resonant" Resonance Absorptionmentioning

confidence: 99%

“…The first, and most important, complexity we will discuss is that of the presence of a finite scale length plasma that usually exists in front of the solid. This can be due to either the pedestal, or foot, which is always present in CPA laser pulses, or by the front of an ultraintense laser pulse itself [9]- [12]. The density scale length is defined as [13] (5)…”

Section: Simple Models For Realistic Lasers and Solidsmentioning

confidence: 99%

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Absorption of ultrashort, ultra-intense laser light by solids and overdense plasmas

Wilks

Kruer

1997

IEEE J. Quantum Electron.

352

266

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Absorption mechanisms for ultra-intense (I > 10 17 W/cm 2 ) laser pulses incident on solids and overdense plasma slabs are discussed. We focus on the ultrashort pulse regime, i.e., where the laser pulse length is only a few to perhaps thousands of femtoseconds. Starting from well-known results at low intensity and long pulse length, we begin with absorption mechanisms such as inverse Bremstrahlung and classical resonance absorption and survey several additional absorption mechanisms significant for ultrashort, ultra-intense laser light interacting with overdense plasmas. Estimates for the fraction of laser energy absorbed by various mechanisms are given. It is found that the fraction of energy absorbed by the plasma, and the resulting electron temperatures, can depend considerably on the scale length of the plasma at the critical surface. It is also found that two-dimensional (2-D) effects greatly increase the amount of absorption into hot electrons, over the amount predicted using one-dimensional (1-D) theory. The inclusion of kinetic effects, collisionless absorption, and multidimensional effects are crucial to obtaining a complete picture of the interaction. We also review some of the experimental efforts to understand this complex process of absorption.

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Section: "Not-so-resonant" Resonance Absorptionmentioning

confidence: 99%