Laser Interaction with Materials for Applications in Optics and photonics: LIMAO

该提案旨在研究激光与玻璃的相互作用，特别是玻璃，这是人类已知的最有趣的材料之一。虽然它有几个不同的研究领域，但其联系仍然是激光与材料的相互作用。 因此，该提案寻求几个答案，关于光纤中超过一阶的受激布里渊散射的噪声特性，我们首先报告的暴露于UV辐射的光纤中瑞利散射的增强，“完美”米长超窄带宽光纤光栅的实现和“剪裁”的可能性通过操纵相位和振幅来改善光源的光学特性，以及窄线宽激光器，表现出低成本激光器的出色性能。将其与宽带谐波产生与内部构建的周期性极化非线性晶体相结合，将允许以比迄今为止可能的低得多的成本轻松地将超窄波长转换到新的区域。随机激光器是一个非常令人好奇的领域，不仅从科学的角度来看，而且从严重的应用，如混沌通信和生物组织中的散射效应。光子集成到手机玻璃中的下一个前沿领域之一是一个需要充分利用的挑战。“磁带上的光子学”的相关领域是一个刚刚开始的领域，应该在临床和实验室环境中产生有趣的应用。利用硫属化物波导的非线性在磁带上，写入飞秒激光器提供了令人兴奋的可能性，结合功能的互连。如何利用这项技术来增加功能还有待发现。我们还试图找到空芯光纤中冷原子引导的极限，并通过向目前有限的高效冷却器引入更多可管理的材料来推动激光冷却的边界。SPR传感器的多路复用的许多方面必须进行调查：例如，如何引导模式耦合到SPR可以远程影响。 光纤作为光的管道，一直是一种无源器件;我们的目标是用碳纳米管和定向聚合物等专业涂层涂覆它，以增加光学传感的新功能，以及迄今为止在商业世界中不可用的没有缓冲层的特殊涂层光纤。

This proposal aims to investigate the interaction of lasers and dielectrics, especially glass, one of the most interesting materials known to man. While it has several different areas of investigation, the link nevertheless remains as laser-material interaction. Hence, the proposal seeks several answers, on the noise characteristics of stimulated Brillouin scattering in optical fibre beyond the first order, the enhancement in Rayleigh scatter in optical fibre with exposure to UV radiation which we were the first to report, the implementation of “perfect” meter long fibre Bragg grating with ultra-narrow bandwidths and the possibility of “tailoring” the optical characteristics of sources by manipulating phase and amplitude, and narrow linewidth lasers, exhibiting an outstanding performance for a low cost laser. Combining this with broadband harmonic generation with in-house built periodically poled nonlinear crystals will allow ultra-narrow wavelength transposition to new regions with ease at a far lower cost than has been possible so far. Random lasers is an area of intense curiosity not only from a scientific point of view but also from serious applications such as in chaotic communication and association with scattering effects in bio tissue. One of the next frontier in photonics integration into cell-phone glass is a challenge which needs to be fully exploited. The related area of “Photonics on a tape” is an area that has only just begun, and one which should yield interesting application in the clinical and laboratory environment. Exploiting the nonlinearity of chalcogenide waveguides on a tape, written with fs lasers offers exciting possibilities for combining interconnects with functionality. How this technology may be harnessed for added functionality is yet to be discovered. We also seek to find the limits of cold atom guidance in hollow-core optical fibres as well as push the boundaries of laser cooling by introducing more managable materials to the currently limited high efficiency coolers. Many aspects of multiplexing of SPR sensors have to be investigated: for example, how the guided mode coupling to the SPR may be effected remotely. Optical fiber being the conduit for light, has remained a passive device; we aim to coat it with specialist coatings such as carbon nanotubes and oriented polymers to add novel functionality for optical sensing and specially coated fibre without a buffer layer, so far unavailable in the commercial world.