Research areas description
Photonics is the branch of physics that deals with the properties and applications of photons especially as a medium for transmitting information. Although it has enabled our high-tech society to communicate across the world with relative ease, our appreciation of power of photonics is still in its infancy.
For advanced optical processing, it is often necessary to influence properties such as the phase and amplitude of photons. An elegant approach involves the use of a semi-infinitely long diffractive device. Dr. Raman Kashyap has some creative and original ideas on how to create these diffractive devices in two and three dimensions and also how to make them "tuneable." The ability of these diffractive devices to be tuneable makes them invaluable to researchers who are desperately in need of solutions for all optical transparent communication networks.
Dr. Kashyap's research has led him into the field of photonic band-gap materials, also known as photonic crystals, in which "artificial" structures are created to modify how light is entrapped. For example, in these perfect artificial structures, light may not be allowed to escape, leading to a compact optical memory function, which is a highly desirable function for a vast number of applications in medicine, communications and computer storage, and one which increases our technological capability by orders of magnitude.
Connections have always played a significant part in Dr. Kashyap's reality. For example, he invented a method for making infinitely long diffractive devices in optical fibre, by recognizing the infinite movement of a point on the surface of a rotating wheel. As the Canada Research Chair in Future Photonics Systems, Dr. Kashyap's objectives are to figure out how to simplify the traditionally complex methods for manipulating photons, in collaboration with many colleagues across the country and abroad.
- 2000 MATERIALS SCIENCE AND TECHNOLOGY
- Kashyap, Raman | Chairholder
External sources of funding
Canada Research Chairs