Time resolved evolution of structural, electrical, and thermal properties of copper irradiated by an intense ultrashort laser pulse

Arvinder S. Sandhu; A. K. Dharmadhikari; G. Ravindra Kumar

doi:10.1063/1.1834726

Time resolved evolution of structural, electrical, and thermal properties of copper irradiated by an intense ultrashort laser pulse

Arvinder S. Sandhu, A. K. Dharmadhikari, G. Ravindra Kumar

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

26 Scopus citations

Abstract

The dynamical properties of copper metal are obtained on a picosecond time scale using 100 fs laser pulse at 1015 W cm-2 - an intensity regime relevant to femtosecond micromachining. The dissipation mechanisms aling laws spanning a wide temperature range are obtained from femtosecond pump-probe reflectivity. We observe obliteration of the crystalline structure in copper within 400 fs due to lattice disorder caused by the intense laser pulse. The electrical resistivity is obtained by studying the probe reflectivity evolution from 0 to 30 ps. The "resistivity saturation" effect in an unexplored regime intermediate to hot plasma and cold solid is studied in detail. The temperature evolution and thermal conductivity values are also obtained.

Original language	English (US)
Article number	023526
Journal	Journal of Applied Physics
Volume	97
Issue number	2
DOIs	https://doi.org/10.1063/1.1834726
State	Published - Jan 15 2005
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1063/1.1834726

Cite this

@article{75d9fa31e8ec4cc184e069fcd26e7044,

title = "Time resolved evolution of structural, electrical, and thermal properties of copper irradiated by an intense ultrashort laser pulse",

abstract = "The dynamical properties of copper metal are obtained on a picosecond time scale using 100 fs laser pulse at 1015 W cm-2 - an intensity regime relevant to femtosecond micromachining. The dissipation mechanisms aling laws spanning a wide temperature range are obtained from femtosecond pump-probe reflectivity. We observe obliteration of the crystalline structure in copper within 400 fs due to lattice disorder caused by the intense laser pulse. The electrical resistivity is obtained by studying the probe reflectivity evolution from 0 to 30 ps. The {"}resistivity saturation{"} effect in an unexplored regime intermediate to hot plasma and cold solid is studied in detail. The temperature evolution and thermal conductivity values are also obtained.",

author = "Sandhu, {Arvinder S.} and Dharmadhikari, {A. K.} and Kumar, {G. Ravindra}",

note = "Funding Information: The authors thank Sudip Sengupta and P. K. Kaw for discussions and valuable help in numerical codes. The authors also thank P. P. Rajeev, Vinod Kumarappan, M. Krishnamurthy, and D. Mathur for useful suggestions. The laser system used was funded in part by the Department of Science and Technology, Government of India.",

year = "2005",

month = jan,

day = "15",

doi = "10.1063/1.1834726",

language = "English (US)",

volume = "97",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

number = "2",

}

TY - JOUR

T1 - Time resolved evolution of structural, electrical, and thermal properties of copper irradiated by an intense ultrashort laser pulse

AU - Sandhu, Arvinder S.

AU - Dharmadhikari, A. K.

AU - Kumar, G. Ravindra

N1 - Funding Information: The authors thank Sudip Sengupta and P. K. Kaw for discussions and valuable help in numerical codes. The authors also thank P. P. Rajeev, Vinod Kumarappan, M. Krishnamurthy, and D. Mathur for useful suggestions. The laser system used was funded in part by the Department of Science and Technology, Government of India.

PY - 2005/1/15

Y1 - 2005/1/15

N2 - The dynamical properties of copper metal are obtained on a picosecond time scale using 100 fs laser pulse at 1015 W cm-2 - an intensity regime relevant to femtosecond micromachining. The dissipation mechanisms aling laws spanning a wide temperature range are obtained from femtosecond pump-probe reflectivity. We observe obliteration of the crystalline structure in copper within 400 fs due to lattice disorder caused by the intense laser pulse. The electrical resistivity is obtained by studying the probe reflectivity evolution from 0 to 30 ps. The "resistivity saturation" effect in an unexplored regime intermediate to hot plasma and cold solid is studied in detail. The temperature evolution and thermal conductivity values are also obtained.

AB - The dynamical properties of copper metal are obtained on a picosecond time scale using 100 fs laser pulse at 1015 W cm-2 - an intensity regime relevant to femtosecond micromachining. The dissipation mechanisms aling laws spanning a wide temperature range are obtained from femtosecond pump-probe reflectivity. We observe obliteration of the crystalline structure in copper within 400 fs due to lattice disorder caused by the intense laser pulse. The electrical resistivity is obtained by studying the probe reflectivity evolution from 0 to 30 ps. The "resistivity saturation" effect in an unexplored regime intermediate to hot plasma and cold solid is studied in detail. The temperature evolution and thermal conductivity values are also obtained.

UR - http://www.scopus.com/inward/record.url?scp=19944434058&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=19944434058&partnerID=8YFLogxK

U2 - 10.1063/1.1834726

DO - 10.1063/1.1834726

M3 - Article

AN - SCOPUS:19944434058

SN - 0021-8979

VL - 97

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 2

M1 - 023526

ER -

Time resolved evolution of structural, electrical, and thermal properties of copper irradiated by an intense ultrashort laser pulse

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this