Hubbard R, Ovchinnikov Yu B, Hayes J, Richardson D J, Fu Y J, Lin S D, See P, Sinclair A G
National Physical Laboratory, Hampton Road, Teddington, Middlesex, TW11 0LW, UK.
Opt Express. 2010 Aug 30;18(18):18811-9. doi: 10.1364/OE.18.018811.
We report an endlessly single mode, fiber-optic confocal microscope, based on a large mode area photonic crystal fiber. The microscope confines a very broad spectral range of excitation and emission wavelengths to a single spatial mode in the fiber. Single-mode operation over an optical octave is feasible. At a magnification of 10 and λ = 900 nm, its resolution was measured to be 1.0 μm (lateral) and 2.5 μm (axial). The microscope's use is demonstrated by imaging single photons emitted by individual InAs quantum dots in a pillar microcavity.
我们报道了一种基于大模场面积光子晶体光纤的无限单模光纤共焦显微镜。该显微镜将非常宽的激发和发射波长光谱范围限制在光纤中的单个空间模式。在一个光学倍频程上实现单模操作是可行的。在放大倍数为10且波长λ = 900 nm时，测得其分辨率为横向1.0μm和轴向2.5μm。通过对柱形微腔中单个铟砷量子点发射的单光子进行成像，展示了该显微镜的应用。
