Nanostructuring of solid surfaces by femtosecond laser pulses

Journal Article · Fri Oct 08 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3507099· OSTI ID:21436010

Kudryashov, Sergey I; Ionin, Andrey A; Seleznev, Leonid V; Sinitsyn, Dmitry V; Sharipov, A R ^[1]; Golosov, Eugene V; Kolobov, Yuriy R ^[2]; Ligachev, Alexander E ^[3]

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1. P.N. Lebedev Physical Institute, Russian Academy of Sciences, Leninskiy prospect 53, 119991 Moscow (Russian Federation)
2. Belgorod State University, Belgorod (Russian Federation)
3. A.M. Prokhorov General Physics Institute, Moscow (Russian Federation)

One-dimensional quasi-periodic structures whose period is much smaller than the wavelength of exciting optical radiation have been obtained on a titanium surface under the multi-shot action of linearly polarized femtosecond laser radiation at various surface energy densities. As the radiation energy density increases, the one-dimensional surface nanogratings oriented perpendicularly to the radiation polarization evolve from quasi-periodic ablative nano-grooves to regular lattices with sub-wavelength periods (90-400 nm). In contrast to the preceding works for various metals, the period of lattices for titanium decreases with increasing energy density. The formation of the indicated surface nanostructures is explained by the interference of the electric fields of incident laser radiation and a surface electromagnetic wave excited by this radiation, as shown by our transient reflectivity measurements and modeling, because the length of the surface electromagnetic wave for titanium with significant interband absorption decreases versus increasing electron excitation of the material.

• OSTI ID: 21436010
• Journal Information: AIP Conference Proceedings, Vol. 1278, Issue 1; Conference: International symposium on high power laser ablation 2010, Santa Fe, NM (United States), 18-22 Apr 2010; Other Information: DOI: 10.1063/1.3507099; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
ABLATION
ABSORPTION
COMPUTERIZED SIMULATION
ELECTRIC FIELDS
ELECTRONS
ENERGY DENSITY
EXCITATION
LASER RADIATION
NANOSTRUCTURES
PERIODICITY
POLARIZATION
PULSED IRRADIATION
PULSES
REFLECTIVITY
SOLIDS
SURFACE ENERGY
SURFACES
TITANIUM
TRANSIENTS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ELEMENTS
ENERGY
ENERGY-LEVEL TRANSITIONS
FERMIONS
FREE ENERGY
IRRADIATION
LEPTONS
METALS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
SIMULATION
SORPTION
SURFACE PROPERTIES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENTS
VARIATIONS