Evolution of femtosecond laser-induced surface ripples on lithium niobate crystal surfaces

Hisashi Shimizu, Go Obara, Mitsuhiro Terakawa, Eric Mazur, Minoru Obara

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We fabricated periodic ripple structures on the surface of a lithium niobate crystal by irradiation with femtosecond laser pulses and observed the evolution of these structures under irradiation with successive laser pulses. After just a few laser pulses we observed nanorod-shaped craters, aligned with each other but randomly distributed over the surface. The nanocraters are caused by nanoablation at defects in the crystal surface. With increasing pulse number, side-lobed nanocraters appear and light scattered from the initial nanorod-shaped craters at the crystal surface interferes with the incident light, causing the formation of periodic structures.

Original languageEnglish
Article number112701
JournalApplied Physics Express
Volume6
Issue number11
DOIs
Publication statusPublished - 2013 Nov

Fingerprint

lithium niobates
Ultrashort pulses
ripples
crystal surfaces
Lithium
Crystals
Periodic structures
pulses
Nanorods
craters
nanorods
lasers
Laser pulses
Irradiation
irradiation
Defects
defects
crystals

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Evolution of femtosecond laser-induced surface ripples on lithium niobate crystal surfaces. / Shimizu, Hisashi; Obara, Go; Terakawa, Mitsuhiro; Mazur, Eric; Obara, Minoru.

In: Applied Physics Express, Vol. 6, No. 11, 112701, 11.2013.

Research output: Contribution to journalArticle

Shimizu, Hisashi ; Obara, Go ; Terakawa, Mitsuhiro ; Mazur, Eric ; Obara, Minoru. / Evolution of femtosecond laser-induced surface ripples on lithium niobate crystal surfaces. In: Applied Physics Express. 2013 ; Vol. 6, No. 11.
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