Details of Grant 

EPSRC Reference:	GR/R74918/01
Title:	Three-dimensional control of light in fully functional thin-film photonic crystal devices and circuits
Principal Investigator:	Russell, Professor PS
Other Investigators:	Skryabin, Professor D
Researcher Co-Investigators:
Project Partners:	Georgia Institute of Technology
Department:	Physics
Organisation:	University of Bath
Scheme:	Standard Research (Pre-FEC)
Starts:	01 July 2002	Ends:	30 September 2005	Value (£):	157,243
EPSRC Research Topic Classifications:	Optical Communications
EPSRC Industrial Sector Classifications:	Electronics
Related Grants:
Panel History:
Summary on Grant Application Form
Describe the proposed research in about 200 words.The aim of this three-year project is to develop a suite of computer programs suitable for designing complex mufti-functional thin film photonic crystal (TFPC) circuits. To tackle this successfully ft is Important to adopt a realistic and accurate theoretical approach. Dating back to 1995, we have pioneered the development of a rigorous and physically transparent method for analysing TFPCs. Our method avoids the inherent drawbacks of both computer experiments (fully numerical approaches such as FDTD) and inaccurate quasi-analytical toy models which fail to deal properly with dispersion and out-of-plane losses. Most reported experimental work on photonic crystal films is based on incomplete or non-existent designs, resulting in components that do not work as desired. Our computer programs will be coded to run on a new parallel super-computer at Bath, and will permit complete design of fully operational devices and multi-component circuits that can be realistically made using existing fabrication techniques.One great advantage of TFPCs is that the optical functionality is entirely governed by the size, distribution and spacing of the holes. Thus, one lithographic exposure can result in a circuit with multiple devices, Interfaces and input/output couplers. Arrays of VCSELs can be produced, each lasing at a different wavelength (the need for multilayer mirrors is eliminated using a unique characteristic of Bloch waves - they can suffer total internal reflection at normal incidence).
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Further Information:
Organisation Website:	http://www.bath.ac.uk