Laser-Induced Surface Polaritons and Optical Breakdown

Bonch-Bruevich, A. M.; Libenson, Mikhail N.

doi:10.1016/b978-0-444-88359-9.50016-8

Cited by 7 publications

(6 citation statements)

References 16 publications

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“…Such structures are usually oriented in a certain way toward the projection of the light-wave electric vector on the surface and have a period of the order of the incident radiation wavelength λ . A lot of papers in recent years are devoted to formation of the SPS (look for example fundamental work 15 ). But relationships between topological parameters of generated regular microstructures and laser radiation characteristics are highly complicated and still not completely studied.…”

Section: Lms Based On Surface Electromagnetic Waves (Sew) and Surfacementioning

confidence: 99%

General concept of a surface microgeometry reconstruction based on laser technology

Veiko¹

2002

Photon Processing in Microelectronics and Photonics

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Surface of solids play a leading role in any process of interaction between solids, solids-liquids, solids-gases and solids-plasma. Microgeometry (roughness) is a key parameter of the solids surface which influence a lot mechanical, optical, electronic, chemical, thermical and other characteristics.Nowadays the laser-based technologies is a great challenge to improve a surface microgeometry (SM) quality and controllability.Different laser-based surface processing are considered: -surface microstructuring and control of roughness by laser ablation, -surface microstructuring based on creation of surface electromagnetic waves (SEW) and surface periodic structures (SPS), -surface smoothing and microstructuring based on laser heating till melting and further phenomena in a melted phase.Some examples of laser applications to improve optical, tribological and other surface characteristic are considered and analyzed.Future prospects of this field are discussed.

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Section: Lms Based On Surface Electromagnetic Waves (Sew) and Surfacementioning

confidence: 99%

General concept of a surface microgeometry reconstruction based on laser technology

Veiko¹

2002

Photon Processing in Microelectronics and Photonics

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“…This mechanism usually takes place in suite wide range of laser actions when the surface temperature exceeds the one of melting point (sometimes significantly exceeds) and there is a melt layer under the surface [3]. Hy&odainic mechanismone ofthe most effective mechanisms of surface rdid formation -was chosen for analysis.…”

Section: Abstrmtmentioning

confidence: 99%

“…To set the problem one can use the similar approach as described in [3]. Let the laser radiation act on a substance, that occupies a half.space where function 5c,yt) describes the surface rellef(iy plane) and its evolution with time.…”

Section: Ti]eoretical Treatmentmentioning

confidence: 99%

“…It is known (see for example [3]), the temperature distribution can be represented as: As a first approximation these magnitudes can be found in the following way.…”

Section: Ti]eoretical Treatmentmentioning

confidence: 99%

“…solving the boundaryvahic thcrmoconduction problcm ofheating ofmassivc medium by interferetice 1iht Ilux [3] and using obtained solution in order to find the therrno-EMF distribution rn nearsurfacc laycr (analogously to [23) aftcr cxccuting thc described proccdurc (7)(8), fmally, onc gcts: j(zt -* cO) _y-+ s2(z,t -+ ck 1Z This approximation is applicable in most actually interesting cases In this connection heating in the depth of the substance (z >> H0 4) is not essential and thexmo-EMF is absent Electric pressure in the used approximations is: solving the boundaryvahic thcrmoconduction problcm ofheating ofmassivc medium by interferetice 1iht Ilux [3] and using obtained solution in order to find the therrno-EMF distribution rn nearsurfacc laycr (analogously to [23) aftcr cxccuting thc described proccdurc (7)(8), fmally, onc gcts: j(zt -* cO) _y-+ s2(z,t -+ ck 1Z This approximation is applicable in most actually interesting cases In this connection heating in the depth of the substance (z >> H0 4) is not essential and thexmo-EMF is absent Electric pressure in the used approximations is:…”

Section: Ti]eoretical Treatmentmentioning

confidence: 99%

See 2 more Smart Citations

<title>Thermoelectric mechanism of structure formation on a melt surface</title>

Дорофеев

Libenson

Shiryaev

1997

Nonresonant Laser-Matter Interaction (NLMI-9)

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ABSTRMTThe contribution of laser-induced thermoelectric effects in the formation of periodic relief on the surface ofmetal and metal-like melt is considered theoretically. The threshold and the Instability maement are found.The present paper is a continuation of consecutive sidy of surface formation with possible participation of laser-induced electro-physical effects that has been started before [12J. Hy&odainic mechanismone ofthe most effective mechanisms of surface rdid formation -was chosen for analysis. This mechanism usually takes place in suite wide range of laser actions when the surface temperature exceeds the one of melting point (sometimes significantly exceeds) and there is a melt layer under the surface [3]. It is taken into account that the melt is under not only cipillary and evaporation pressure but also under electrical pressure related to thenno-clcctromotive force (E) excited by inhomogcncous laser heating. Suth combination of forces in onnection with this problem has not been studied previou1y. Recently E.DEidcl'man set and considered the problem of convection in thin layers of inhomogencously heated (across the layer) liquid taking into account thertno-EMF [4]. The eseiice ofthe problem is sinillar to one being analyzed. However, in the later gradients of temperature along the melt layer also influence structure formation under considered conditions. They result from strong edge thermoconduction effects for sharp focusing of the radiation, irradiation of the surface by laser beam with inhomogeneous spatial distribution of its intensity. or/and action of interference light fieLd. The interference field can be obtained by direct applying of two beams or as a result of interference of the light with excited surface clectromagnetic mode ofvarious origins. The present paper considers this case which is typical for laser action

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Allowance for effects due to thermoelectrically induced vortex motion in an analysis of structure formation on melt surfaces

Libenson

Shiryaev

2000

Tech. Phys.

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Laser-Induced Surface Polaritons and Optical Breakdown

Cited by 7 publications

References 16 publications

General concept of a surface microgeometry reconstruction based on laser technology

General concept of a surface microgeometry reconstruction based on laser technology

<title>Thermoelectric mechanism of structure formation on a melt surface</title>

Allowance for effects due to thermoelectrically induced vortex motion in an analysis of structure formation on melt surfaces

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