Hypersensitisation and Patterned Photosensitivity in Glass

最近的发展，涉及全息图案化的光敏性在玻璃基光波导由我们的小组开发，可以扩展到制造复杂的二维结构，包括平面波导光子带隙器件的应用在电信，传感和信号处理。这些将包括新型光栅阵列为基础的2-D DFB激光器和过滤器的稀土掺杂平面波导。新的蚀刻技术被用来提高折射率对比度，以及对这种设备的封装，将开发基于我们最近的观察氢增强玻璃蚀刻。这种方法可能不仅适用于光子技术，而且适用于氧化物的半导体光刻。

Recent developments involving holographically patterned photosensitivity in glass-based optical waveguides developed by our group can be extended to fabricate complex two-dimensional structures including planar waveguide photonic bandgap devices for applications in telecommunications, sensing and signal processing. These will include novel grating-array based 2-D DFB lasers and filters in rare-earth doped planar waveguides. Novel etching techniques to be used to enhance index contrast, as well as to characterise such devices, will be developed based on our recent observation of hydrogen-enhanced etching of glass. Such methods could potentially be applicable to not only photonic technologies but also semiconductor lithography of oxides.