Ordered YBCO sub-micron array structures induced by pulsed femtosecond laser irradiation

Chih-Wei Luo; C. C. Lee; C. H. Li; H. C. Shin; Y. J. Chen; C. C. Hsieh; C. H. Su; W. Y. Tzeng; Kaung-Hsiung Wu; Jenh-Yih Juang; T. M. Uen; S. P. Chen; Jiunn-Yuan Lin; T. Kobayashi

doi:10.1364/OE.16.020610

Ordered YBCO sub-micron array structures induced by pulsed femtosecond laser irradiation

Chih-Wei Luo, C. C. Lee, C. H. Li, H. C. Shin, Y. J. Chen, C. C. Hsieh, C. H. Su, W. Y. Tzeng, Kaung-Hsiung Wu, Jenh-Yih Juang, T. M. Uen, S. P. Chen, Jiunn-Yuan Lin, T. Kobayashi

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

We report on the formation of organized sub-micron YBa₂Cu ₃O₇ (YBCO) dots induced by irradiating femtosecond laser pulses on YBCO films prepared by pulse laser deposition with fluence in the range of 0.21∼0.53 J/cm². The morphology of the YBCO film surface depends strongly on the laser fluences irradiated. At lower laser fluence (∼0.21 J/cm²) the morphology was pattern of periodic ripples with sub-micrometer spacing. Slightly increasing the laser fluence to 0.26 J/cm ² changes the pattern into organized sub-micron dots with diameters ranging from 100 nm to 800 nm and height of 150 nm. Further increase of the laser fluence to over 0.32 J/cm², however, appeared to result in massive melting and led to irregular morphology. The mechanism and the implications of the current findings will be discussed. Arrays of YBCO sub-micron dots with T_c = 89.7 K were obtained.

Original language	English
Pages (from-to)	20610-20616
Number of pages	7
Journal	Optics Express
Volume	16
Issue number	25
DOIs	https://doi.org/10.1364/OE.16.020610
State	Published - 8 Dec 2008

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@article{a588229dcac54e0a82f823bf55ecde5b,

title = "Ordered YBCO sub-micron array structures induced by pulsed femtosecond laser irradiation",

abstract = "We report on the formation of organized sub-micron YBa2Cu 3O7 (YBCO) dots induced by irradiating femtosecond laser pulses on YBCO films prepared by pulse laser deposition with fluence in the range of 0.21∼0.53 J/cm2. The morphology of the YBCO film surface depends strongly on the laser fluences irradiated. At lower laser fluence (∼0.21 J/cm2) the morphology was pattern of periodic ripples with sub-micrometer spacing. Slightly increasing the laser fluence to 0.26 J/cm 2 changes the pattern into organized sub-micron dots with diameters ranging from 100 nm to 800 nm and height of 150 nm. Further increase of the laser fluence to over 0.32 J/cm2, however, appeared to result in massive melting and led to irregular morphology. The mechanism and the implications of the current findings will be discussed. Arrays of YBCO sub-micron dots with Tc = 89.7 K were obtained.",

author = "Chih-Wei Luo and Lee, {C. C.} and Li, {C. H.} and Shin, {H. C.} and Chen, {Y. J.} and Hsieh, {C. C.} and Su, {C. H.} and Tzeng, {W. Y.} and Kaung-Hsiung Wu and Jenh-Yih Juang and Uen, {T. M.} and Chen, {S. P.} and Jiunn-Yuan Lin and T. Kobayashi",

year = "2008",

month = dec,

day = "8",

doi = "10.1364/OE.16.020610",

language = "English",

volume = "16",

pages = "20610--20616",

journal = "Optics Express",

issn = "1094-4087",

publisher = "The Optical Society",

number = "25",

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TY - JOUR

T1 - Ordered YBCO sub-micron array structures induced by pulsed femtosecond laser irradiation

AU - Luo, Chih-Wei

AU - Lee, C. C.

AU - Li, C. H.

AU - Shin, H. C.

AU - Chen, Y. J.

AU - Hsieh, C. C.

AU - Su, C. H.

AU - Tzeng, W. Y.

AU - Wu, Kaung-Hsiung

AU - Juang, Jenh-Yih

AU - Uen, T. M.

AU - Chen, S. P.

AU - Lin, Jiunn-Yuan

AU - Kobayashi, T.

PY - 2008/12/8

Y1 - 2008/12/8

N2 - We report on the formation of organized sub-micron YBa2Cu 3O7 (YBCO) dots induced by irradiating femtosecond laser pulses on YBCO films prepared by pulse laser deposition with fluence in the range of 0.21∼0.53 J/cm2. The morphology of the YBCO film surface depends strongly on the laser fluences irradiated. At lower laser fluence (∼0.21 J/cm2) the morphology was pattern of periodic ripples with sub-micrometer spacing. Slightly increasing the laser fluence to 0.26 J/cm 2 changes the pattern into organized sub-micron dots with diameters ranging from 100 nm to 800 nm and height of 150 nm. Further increase of the laser fluence to over 0.32 J/cm2, however, appeared to result in massive melting and led to irregular morphology. The mechanism and the implications of the current findings will be discussed. Arrays of YBCO sub-micron dots with Tc = 89.7 K were obtained.

AB - We report on the formation of organized sub-micron YBa2Cu 3O7 (YBCO) dots induced by irradiating femtosecond laser pulses on YBCO films prepared by pulse laser deposition with fluence in the range of 0.21∼0.53 J/cm2. The morphology of the YBCO film surface depends strongly on the laser fluences irradiated. At lower laser fluence (∼0.21 J/cm2) the morphology was pattern of periodic ripples with sub-micrometer spacing. Slightly increasing the laser fluence to 0.26 J/cm 2 changes the pattern into organized sub-micron dots with diameters ranging from 100 nm to 800 nm and height of 150 nm. Further increase of the laser fluence to over 0.32 J/cm2, however, appeared to result in massive melting and led to irregular morphology. The mechanism and the implications of the current findings will be discussed. Arrays of YBCO sub-micron dots with Tc = 89.7 K were obtained.

UR - http://www.scopus.com/inward/record.url?scp=57349124925&partnerID=8YFLogxK

U2 - 10.1364/OE.16.020610

DO - 10.1364/OE.16.020610

M3 - Article

C2 - 19065200

AN - SCOPUS:57349124925

SN - 1094-4087

VL - 16

SP - 20610

EP - 20616

JO - Optics Express

JF - Optics Express

IS - 25

ER -

Ordered YBCO sub-micron array structures induced by pulsed femtosecond laser irradiation

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