Nanoscale manipulation of matter with light

Bhardwaj博士的研究涉及使用飞秒激光器产生的短于万亿分之一秒的光脉冲，在自然时间和长度尺度上探测和操纵物质的性质。在玻璃等透明材料中，他的研究重点是了解光如何永久地改变3D材料的特性，其精度比人类细胞的大小小一百倍。这种操作将导致制造新颖的、多层的、嵌入式的、微型的光子器件，其将增强沿沿着光网络的数据传输和用于生物传感应用。将他的研究扩展到生物系统，他将探索使用光脉冲进行组织处理，并选择性地相互作用，探测，操纵和破坏活细胞的单个元素。这项研究对激光手术、药物发现和基因治疗都有重要意义。在基础层面上，他将研究分子，所有物质的基本单位，以了解光与物质相互作用的微观过程。具体来说，他将讨论分子中的电子在与光相互作用期间如何集体响应。这种理解对于纳米光子学、分子电子学和阿秒科学等新兴技术以及化学和生物学至关重要。加拿大在超短光脉冲科学，特别是强激光物理学方面处于世界领先地位，这项研究将巩固其领导地位。Bhardwaj博士的研究处于科学和技术的前沿，将增强我们对光与物质相互作用的理解。通过利用光线，它将改善加拿大人的健康、安全和社会福祉。

Dr. Bhardwaj's research involves using light pulses that are shorter than a trillionth of a second, produced by a femtosecond laser, to probe and manipulate properties of matter on their natural time and length scales. In transparent materials like glass, his research focuses on understanding how light permanently modifies material properties in 3D with a precision that is hundred times less than the size of human cell. Such a manipulation will lead to fabrication of novel, multi-layered, embedded, miniature photonic devices that will enhance data transmission along optical networks and for bio-sensing applications. Extending his research to biological systems, he will explore use of light pulses for tissue processing and to selectively interact, probe, manipulate and destroy individual elements of live cells. This research is important for laser surgery, drug discovery and gene therapy. At a fundamental level he will study molecules, basic unit of all matter, to understand the microscopic processes involved in light-matter interaction. Specifically, he will address how electrons in a molecule collectively respond during interaction with light. Such an understanding is vital for new and emerging technologies like nano-photonics, molecular electronics and attosecond science, and in chemistry and biology. Canada is a world leader in the science of ultrashort light pulses, specifically intense laser physics, and this research will consolidate its leadership role. Dr. Bhardwaj's research, which is at the forefront of science and technology, will enhance our understanding of how light interacts with matter. By harnessing light it will lead to improvement in health, security and social well being of Canadians.