Laser-Induced Microexplosion Confined in the Bulk of a Sapphire Crystal: Evidence of Multimegabar Pressures

Juodkazis, S.; Nishimura, K.; Tanaka, S.; Misawa, H.; Gamaly, E. G.; Luther-Davies, B.; Hallo, L.; Nicolai, P.; Tikhonchuk, V. T.

Laser-Induced Microexplosion Confined in the Bulk of a Sapphire Crystal: Evidence of Multimegabar Pressures

Juodkazis, S.; Nishimura, K.; Tanaka, S. et al.

Physical Review Letters, 2006, 96(16), 166101-1-166101-4

Permalink : https://hdl.handle.net/2115/10531

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アクセス権	open access
URI	https://hdl.handle.net/2115/10531
タイトル	Laser-Induced Microexplosion Confined in the Bulk of a Sapphire Crystal: Evidence of Multimegabar Pressures
著者	Juodkazis, S. ; Nishimura, K. ; Tanaka, S. ; Misawa, H. ; Gamaly, E. G. ; Luther-Davies, B. ; Hallo, L. ; Nicolai, P. ; Tikhonchuk, V. T.
著者名 Juodkazis, S.
著者名 Nishimura, K.
著者名 Tanaka, S.
e-Rad_Researcher 30253230 著者名 Misawa, H.
著者名 Gamaly, E. G.
著者名 Luther-Davies, B.
著者名 Hallo, L.
著者名 Nicolai, P.
著者名 Tikhonchuk, V. T.
言語	英語
発行日	2006-04-28
出版者	American Physical Society
収録物名	Physical Review Letters
巻(号)	96(16)
ページ	166101-1-166101-4
抄録	Extremely high pressures (~10 TPa) and temperatures (5×10^5 K) have been produced using a single laser pulse (100 nJ, 800 nm, 200 fs) focused inside a sapphire crystal. The laser pulse creates an intensity over 10^14 W/cm^2 converting material within the absorbing volume of ~0.2 µm^3 into plasma in a few fs. A pressure of ~10 TPa, far exceeding the strength of any material, is created generating strong shock and rarefaction waves. This results in the formation of a nanovoid surrounded by a shell of shock-affected material inside undamaged crystal. Analysis of the size of the void and the shock-affected zone versus the deposited energy shows that the experimental results can be understood on the basis of conservation laws and be modeled by plasma hydrodynamics. Matter subjected to record heating and cooling rates of 10^18 K/s can, thus, be studied in a well-controlled laboratory environment.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Copyright © 2006 American Physical Society
PISSN	0031-9007
関連情報	PMID 16712248
関連情報	URI http://prl.aps.org/
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1103/PhysRevLett.96.166101