Spurny Marcel, O'Faolain Liam, Bulla Douglas A P, Luther-Davies Barry, Krauss Thomas F
School of Physics & Astronomy, University of St. Andrews, St. Andrews, Fife KY16 9SS, UK.
Opt Express. 2011 Jan 31;19(3):1991-6. doi: 10.1364/OE.19.001991.
We demonstrate low loss photonic crystal waveguides in chalcogenide (Ge(33)As(12)Se(55)) glasses. The measured losses are as low as 21 dB/cm. We experimentally determine the refractive index of the thin film chalcogenide glass to be n = 2.6 and demonstrate that dispersion engineering can be performed up to a group index of ng = 40 in this relatively low refractive index contrast system.
我们展示了硫族化物（Ge(33)As(12)Se(55)）玻璃中的低损耗光子晶体波导。测量得到的损耗低至21 dB/cm。我们通过实验确定了硫族化物薄膜玻璃的折射率为n = 2.6，并证明在这个相对低折射率对比度的系统中，可以进行色散工程，直至群折射率ng = 40。
