Babić Lj, Leijssen R, Driessen E F C, de Dood M J A
Huygens Laboratory, Leiden University, Niels Bohrweg 2, 2333 CA Leiden, The Netherlands.
Opt Express. 2011 Sep 26;19(20):19532-41. doi: 10.1364/OE.19.019532.
We report a method of transferring 150 nm thick Al(0.35)Ga(0.65)As photonic crystal slabs to a transparent gel, without compromising their optical properties. We demonstrate successful transfer for membranes as large as ~ 425 × 425 μm(2). The transfer results in a 2.5% frequency red shift and increases the visibility of the resonances in reflection spectra. The avoided crossings between the modes show a subradiant mode with quality factors up to ~300. This suggests that the quality factor is only limited by the finite size of the crystal.
我们报道了一种将150纳米厚的Al(0.35)Ga(0.65)As光子晶体平板转移到透明凝胶上的方法，且不损害其光学性质。我们展示了对于尺寸高达约425×425μm²的膜成功进行了转移。转移导致频率红移2.5%，并增加了反射光谱中共振的可见度。模式之间的避免交叉显示出一个品质因数高达约300的亚辐射模式。这表明品质因数仅受晶体有限尺寸的限制。
