Address: | Blackett Laboratory, London SW7 2BZ |
Country: | UK |
Website: | http://www.imperial.ac.uk/research/photonics/pt_group/research/ODS.htm |
Organisation type: | Academic |
Storage activities: | research in optical data storage |
Profile: | Research interests include the theory of electromagnetic problems, diffraction, focusing and microscopy with especial emphasis on confocal microscopy and optical data storage. Research topics in optical data storage include multiplexed ODS, writing techniques, rigorous modelling of ODS and information theory aspects of ODS. We have already constructed the model for describing the optical system of a BluRay DVD. Simulations are carried out by means of combination of analytic and rigorous numerical methods. Details of this model and some of our theoretical results can be found here. Traditionally, mainly due to digital noise considerations, optical data storage devices used a single pit to store one bit of information. However, our current optical and electronic means are advanced enough to be able to compromise on this point and encode a single pit by more than a bit information. This method in principle has the capability of increasing the data storage density to over 1TB (1000GB) per layer. The method is denoted Multiplexed Optical Data Storage (MODS). Current writing techniques will not be applicable for MODS, and new methods are currently being studied. The theoretical limits of such an approach are also studied from an information theory point of view. This method can be used as an alternative to traditional means of achieving super-resolution. |
Email: | (Reader in Optics) |
Tel: | +44-(0)20-7594 7753 |
Fax: | +44-(0)20-7594 7714 |