Projects

IST: SLAM

Full Name: Super Laser Array Memory

Duration: 1/5/2001-30/4/2004 (Finished)

Partners:

Objective:

To demonstrate the feasibility and show the potential implementation of a robust optical storage system related to the optical near-field technique. Drawback of a classical near-field optical head, its extremely small air gap, must be avoided. A dramatic increase in the air gap height should be obtained and, in the opinion of the proposers, this could be done by using superresolution techniques, by making use of a priori information about the data stream, by implementing a potential coherent detection of the phase of the field reflected towards the probe and by micro -structuring the information pits. An optimum implementation of all these measures requires a detailed analysis of the electromagnetic field in the volume between the optical head and the information layer and an extensive theoretical and experimental study of the reading and recording properties of such an optical system.

INTEC's Role:

Detection of field profile (amplitude & phase) using photonic integrated circuit placed nearby disk, with the aim to resolve grooves (or pits) spaced by less than the wavelength

Project Web site: http://www.optica.tn.tudelft.nl/slam/slam.htm

International Journals

F.W.J. Fransoo, D. Van Thourhout, R. Baets, Performance Analysis of a multi-mode waveguide based optical disc readout system., Applied Optics, 43(17), p.3480-3488 doi:10.1364/ao.43.003480 (2004) .

International Conferences

S. Musa, S.F. Pereira, J.J.M. Braat, F.W.J. Fransoo, D. Van Thourhout, R. Baets, Sub-wavelength detection with waveguides in optical recording, SPIE proceedings, 5380, p.723--728 doi:10.1117/12.556800 (2004).
S. Musa, S.F. Pereira, J.J.M. Braat, F.W.J. Fransoo, D. Van Thourhout, R. Baets, Sub-wavelength detection with waveguides in optical recording, Optical Data Storage Topical Meeting, United States, p.156--158 (2004).
F.W.J. Fransoo, D. Van Thourhout, L. Van Landschoot, S. Verstuyft, R. Baets, A multimodal waveguide for enhanced performance in optical disc read-out, EOS Topical Meeting in Advanced Imaging Techniques 2003, Netherlands, p.115-117 (2003) .
F.W.J. Fransoo, D. Van Thourhout, L. Van Landschoot, A. Verbiest, W. Van Parys, P. Van Daele, R. Baets, A method for detecting sub-wavelength features by means of a multimode waveguide and a mode splitting photonic IC, LEOS Annual, 2, United Kingdom, p.750-751 doi:10.1109/leos.2002.1159524 (2002) .
F.W.J. Fransoo, P. Bienstman, R. Baets, Photonic IC for optical detection with sub wavelength resolution , IEEE/LEOS Benelux Chapter, Belgium, p.205-208 (2001) .

National Conferences

F.W.J. Fransoo, D. Van Thourhout, L. Van Landschoot, A. Verbiest, W. Van Parys, P. Van Daele, R. Baets, Using a multimodal waveguide for enhanced resolution in optical data storage, FTW-symposium, Belgium, (2002) .