CdTe量子点掺杂玻璃的制备及其非线性光学性能
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摘要
采用高温热熔融法制备了CdTe量子点掺杂的硅酸盐玻璃,测试了其拉曼、吸收和发射光谱,验证了量子点掺杂玻璃的量子尺寸效应。在飞秒激光(800 nm和960 nm)激发下,CdTe量子点掺杂玻璃产生了上转换荧光,证明了其为双光子吸收诱导发光,发现双光子荧光对激发波长有一定的范围要求,测得CdTe量子点掺杂玻璃的非线性吸收系数可达3.62×10~(-11) m/W。
The silicate glass doped with CdTe quantum dots is prepared by the high temperature melt-quenching technique and the Raman, absorption and emission spectra are tested. The quantum size effect of quantum dot doped glass is verified. The up-conversion fluorescence of the CdTe quantum dot doped glass is excited by 800 nm and 960 nm femtosecond lasers, which is confirmed to be two-photon absorption induced luminescence and the two-photon fluorescence possesses a requirement for a certain range of wavelengths. The nonlinear absorption coefficient of the CdTe quantum dot doped glass is obtained up to 3.62×10~(-11) m·W~(-1).
The silicate glass doped with CdTe quantum dots is prepared by the high temperature melt-quenching technique and the Raman, absorption and emission spectra are tested. The quantum size effect of quantum dot doped glass is verified. The up-conversion fluorescence of the CdTe quantum dot doped glass is excited by 800 nm and 960 nm femtosecond lasers, which is confirmed to be two-photon absorption induced luminescence and the two-photon fluorescence possesses a requirement for a certain range of wavelengths. The nonlinear absorption coefficient of the CdTe quantum dot doped glass is obtained up to 3.62×10~(-11) m·W~(-1).
引文
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[2] Epifani M, Leo G, Lomascolo M, et al. Sol-gel synthesis of hybrid organic-inorganic monoliths doped with colloidal CdSe/ZnS core-shell nanocrystals[J]. Journal of Sol-Gel Science and Technology, 2003, 26(1/2/3): 441-446.
[3] Nastasi M, Mayer J W. Ion implantation and synthesis of materials[M]. Berlin: Springer, 2006.
[4] Hayakawa T, Selvan S T, Nogami M. Influence of adsorbed CdS nanoparticles on 5D0→7FJ emissions in Eu3+-doped silica gel[J]. Journal of Luminescence, 2000, 87/88/89: 532-534.
[5] Qiu J R, Jiang X W, Zhu C S, et al. Manipulation of gold nanoparticles inside transparent materials[J]. Angewandte Chemie, 2004, 43(17): 2230-2234.
[6] Cheng C, Jiang H L, Ma D W. PbSe quantum dot-doped sodium-aluminum-borosilicate glass fabricated by a melting method[J]. Acta Optica Sinica, 2011, 31(2): 0216005. 程成, 江慧绿, 马德伟. 熔融法制备PbSe量子点钠硼铝硅酸盐玻璃[J]. 光学学报, 2011, 31(2): 0216005.
[7] Fukumi K, Chayahara A, Kadono K, et al. Au+-ion-implanted silica glass with non-linear optical property[J]. Japanese Journal of Applied Physics, 1991, 30(4B): L742-L744.
[8] Gaponenko S V, Woggon U,Saleh M, et al. Nonlinear-optical properties of semiconductor quantum dots and their correlation with the precipitation stage[J]. Journal of the Optical Society of America B, 1993, 10(10): 1947-1954.
[9] Borrelli N F, Hall D W, Holland H J, et al. Quantum confinement effects of semiconducting microcrystallites in glass[J]. Journal of Applied Physics, 1987, 61(12): 5399-5409.
[10] He Z C, Li F. Optical properties of third-order nonlinearities of CdSeS quantum dots/polystyrene composite film[J]. Chinese Journal of Lasers, 2013, 40(10): 1007001. 何志聪, 李芳. CdSeS量子点/聚苯乙烯薄膜的三阶非线性光学特性[J]. 中国激光, 2013, 40(10): 1007001.
[11] Tanaka A, Onari S, Arai T. Raman scattering from CdSe microcrystals embedded in a germanate glass matrix[J]. Physical Review B, 1992, 45(12): 6587-6592.
[12] Guerreiro P T, Ten S, Borrelli N F, et al.PbS quantum-dot doped glasses as saturable absorbers for mode locking of a Cr:forsterite laser[J]. Applied Physics Letters, 1997, 71(12): 1595-1597.
[13] Lipovskii A, Kolobkova E, Petrikov V, et al. Synthesis and characterization of PbSe quantum dots in phosphate glass[J]. Applied Physics Letters, 1997, 71(23): 3406-3408.
[14] Nogami M, Nagaska K, Kato E. Preparation of small-particle-size, semiconductor CdS-doped silica glasses by the sol-gel process[J]. Journal of the American Ceramic Society, 1990, 73(7): 2097-2099.
[15] Cheng C, Li J J. Experimental measurement and determination of photoluminescence lifetime of PbS quantum dots[J]. Acta Optica Sinica, 2017, 37(1):0130001. 程成, 李婕婕. PbS量子点光致荧光寿命的实验测量与确定[J]. 光学学报, 2017, 37(1): 0130001.
[16] Chou K L, Won N, Kwag J, et al. Femto-second laser beam with a low power density achieved a two-photon photodynamic cancer therapy with quantum dots[J]. Journal of Materials Chemistry B, 2013, 1(36): 4584-4592.
[17] Ochoa O R, Witkowski E J, Colajacomo C, et al. Raman characterization of CdTe nanocrystallites embedded in a glass matrix[J]. Journal of Materials Science Letters, 1997, 16(8): 613-616.
[18] Bruchez M, Jr, Moronne M, Gin P, et al. Semiconductor nanocrystals as fluorescent biological labels[J]. Science, 1998, 281(5385): 2013-2016.
[19] Chin R P, Shen Y R, Petrova-Koch V. Photoluminescence from porous silicon by infrared multiphoton excitation[J]. Science, 1995, 270(5237): 776-778.
[20] Sheik-Bahae M, Said A A, Wei T H, et al. Sensitive measurement of optical nonlinearities using a single beam[J]. IEEE Journal of Quantum Electronics, 1990, 26(4): 760-769.
[21] Yin M, Li H P, Tang S H, et al. Determination of nonlinear absorption and refraction by single Z-scan method[J]. Applied Physics B, 2000, 70(4): 587-591.