Naslov
Generation of Ribbons, Helicoids and Complex Scherk Surface in Laser-Matter Interactions

Autori
Lugomer, Stjepan ; Fukumoto, Yasuhide

Izvornik
Mathematics for Industry Series-MI 2009-23 ; Kyushu University, Fukuoka, JAPAN ; GLOBAL COE PROGRAM

Vrsta, podvrsta
Ostale vrste radova, ostalo

Godina
2009

Ključne riječi
Flow Instability; Micro- and Nano- Scale Flow Phenomena; Flow vizualization

Sažetak
Motivated by a diversity of the shape instability phenomena in condensed matter physics, we study formation of elastic ribbon structures and trans-formation into helicoidal structures. Using the multi-pulse laser-matter interaction with the Co-coated surface, a one-dimensional high-density vortex filament array has been created. Increasing the number of pulses, the oscillatory strain field causes the cascade of the shape transformations into structures of increasing topological complexity:vortex filaments into ribbons, into ribbon-helicoids and tubular-ribbon-helicoids, and then into short ribbon-structures with the complex Scherk surface being identified. Above a critical number of pulses, the system is catastrophically disintegrated into small-scale wrinkled and crumpled surfaces.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA