Analysis of the transmission spectra and the parameters extraction of the GaN-based films

摘要：

Nowadays，GaN-based multi-layer materials is developing fast, and it is important to know their interface and optical properties for devices design and fabrication. In this letter, the transmission spectra are analyzed, and the dependence of the transmission spectra on parameters of the samples is discussed. Sequentially, we obtain the transmission spectra of a series of GaN-based samples. Simulation of the transmission spectra is done and useful information is extracted. For one of our samples, the refractive index varies a little between 2.518 and 2.305 with the wavelength from 400 to 800nm, while the extinction coefficient is 6×10-9.5exp(2700/λ), and the thickness is 2860nm. Finally， we get the dispersion relationship of the GaN and AlGaN films, and it is compared with the results of some other research groups.

关键词： transmission spectra GaN AlGaN scatter refractive index.

作者: Li Chao Li Xue Xu Jintong Zhang Yan Li Xiangyang

作者单位: State Key Laboratories of Transducer Technology,Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,People’s Republic of China

会议类型: 国际会议

会议名称: 2008亚太光通信会议(Asia-Pacific Optical Communications 2008)

会议地点: 杭州

会议语种:英文

在线出版日期: 2008-10-26（万方平台首次上网日期，不代表论文的发表时间）