摘要A distinct optical emission from the Rh2O3 (II) structural sapphire is observed under shock compression of 125, 132, and 143GPa. The emission intensity continuously increases with the thickness of shocked sapphire. The colour temperature is determined to be about 4000K, which is obviously smaller than the reported value of the alpha phase alumina at the pressures below 80GPa. The present results suggest that the structural transformation will cause an obvious change of optical property in sapphire.
Abstract：A distinct optical emission from the Rh2O3 (II) structural sapphire is observed under shock compression of 125, 132, and 143GPa. The emission intensity continuously increases with the thickness of shocked sapphire. The colour temperature is determined to be about 4000K, which is obviously smaller than the reported value of the alpha phase alumina at the pressures below 80GPa. The present results suggest that the structural transformation will cause an obvious change of optical property in sapphire.
ZHANG Dai-Yu;LIU Fu-Sheng;HAO Gao-Yu;SUN Yu-Huai. Shock Induced Emission from Sapphire in High-Pressure Phase of Rh2O3 (II) Structure[J]. 中国物理快报, 2007, 24(8): 2341-2344.
ZHANG Dai-Yu, LIU Fu-Sheng, HAO Gao-Yu, SUN Yu-Huai. Shock Induced Emission from Sapphire in High-Pressure Phase of Rh2O3 (II) Structure. Chin. Phys. Lett., 2007, 24(8): 2341-2344.
[1] Holmes N C, Ross M and Nellis W J 1985 Phys. Rev. B 5215835 [2] Pe' lissier J L and Partouche-Sebban D 2005 Physica B 364 14 [3] McQueen R G and Isaak D G 1990 J. Geophys. Res. 9521753 [4] Urtiew P A 1974 J. Appl. Phys. 45 3490 [5] Kondo K 1993 AIP Conf. Proc. 309 1555 [6] Partouche-Sebban D, Pe' lissier J L, Anderson W W, Hixson R S andHoltkamp D B 2005 Physica B 364 1 [7] Hare D E, Holmes N C, and Webb D J 2002 Phys. Rev. B 66014108 [8] Cynn H, Isaak D G, Cohen R E,Nicol M F and Anderson O L 1990 Am. Mineral. 75 439 [9] Thomson K T, Wentzcovitch R M and Bukowinski M S 1996 Science 274 1880 [10] Duan W, Wentzcovitch R M and Thomson K T 1998 Phys.Rev. B 57 10363 [11] Lin J F, Degtyareva O, Prewitt C, Dera P, Sata N, Gregoryanz E,Mao H K and Hemley J 2004 Nature Mater. 3 389 [12] Mashimo T, Tsumoto K, Nakamura K, Noguchi Y, Fukuoka K and Syono Y2000 Geophys. Res. Lett. 27 2021 [13] Dai C D and Tan H 2002 J. Phys. Condens Matter. 14 10829 [14] Window B and Harding G 1981 J. Opt. Soc. Am. 71 354 [15] Mitchell A C and Nellis W J 1980 J. Appl. Phys. 523363 [16] Marsh S P 1980 LALS Shock Hugoniot Data (Berkeley:University of California Press) [17] Boslough M B 1985 J. Appl. Phys. 58 3394 [18] Billings B H 1972 American Institute of Physics Handbook(New York: McGraw-Hill) p 6 [19] Grover R and Urtiew P A 1974 J. Appl. Phys. 45 146 [20] Wright T W 2002 The Physics and Mathematics of AdiabaticShear Bands (Cambridge: Cambridge University Press) p 98 [21] Mashimo T, Hanaoka Y and Nagayama K 1988 J. Appl. Phys. 63 327
2007, Vol. 24 
