Multiple Scattering Effects of Ag Particles in Random Ag--SiN film
ZHU Ruo-Jian1, WANG Jia1, OU Ding-Rong2, ZHU Jing2, JIN Guo-Fan1
1State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084
2Department of Materials Science and Engineering, Tsinghua University, Beijing 100084
Multiple Scattering Effects of Ag Particles in Random Ag--SiN film
ZHU Ruo-Jian1;WANG Jia1; OU Ding-Rong2;ZHU Jing2;JIN Guo-Fan1
1State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084
2Department of Materials Science and Engineering, Tsinghua University, Beijing 100084
Abstract： A layer of 40nm-thick Ag--SiN film with Ag nano-particles embedded and distributed randomly in the SiN thin film were deposited by the method of radiant-frequency magnetron sputtering. Specimens orderly comprising a random Ag--SiN film and an optical phase change recording layer were exposed to a focused laser beam with wavelength of 690nm. It is shown that, with a random Ag--SiN layer deposited above the recording layer. Calculation by the finite difference time domain method of a 40nm-thick SiN film under a Gaussian beam irradiation has been carried out to simulate the near-field distribution in the film, which showed a huge local near-field intensity enhancement of about 200 times if small Ag particles with diameter of 6nm were modelled in the SiN film in the central region of the incident laser spot.
ZHU Ruo-Jian;WANG Jia; OU Ding-Rong;ZHU Jing;JIN Guo-Fan. Multiple Scattering Effects of Ag Particles in Random Ag--SiN film[J]. 中国物理快报, 2005, 22(8): 1906-1905.
ZHU Ruo-Jian, WANG Jia, OU Ding-Rong, ZHU Jing, JIN Guo-Fan. Multiple Scattering Effects of Ag Particles in Random Ag--SiN film. Chin. Phys. Lett., 2005, 22(8): 1906-1905.
2005, Vol. 22 
