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Effect of laser beam profile on the ablated HTS target surface

Title
Effect of laser beam profile on the ablated HTS target surface
Authors
Jeong Y.S.Lee S.Y.Choi M.K.Kim J.Y.Chung B.-D.Yang I.-S.Oh B.Moon S.-H.
Ewha Authors
정병두양인상
SCOPUS Author ID
정병두scopus; 양인상scopus
Issue Date
1997
Journal Title
Physica C: Superconductivity and its Applications
ISSN
0921-4534JCR Link
Citation
Physica C: Superconductivity and its Applications vol. 282-287, no. PART 2, pp. 663 - 664
Indexed
SCI; SCIE; SCOPUS scopus
Document Type
Article
Abstract
Laser ablated YBCO target surface has been investigated systematically to explore the effect of laser beam on the surface modification of the target using scanning electron microscopy. The target surface is ablated inhomogeniously due to erosion-resistant surface formed by surface segregation,which results in the surface modification, such as cones. The image of SEM shows the difference of cone formations at the boundary and at the center of the ablated area on the target surface. This nonuniform modification of the ablated area is supposed to be mainly due to Gaussian profile of the laser beam and the difference of thermal conductivities of the ablated area.
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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