Self-mixing Sensor for Biomedical Applications based on Vertical-Cavity Surface Emitting Lasers.
Speaker: Ahmad Ashrif A Bakar, ITEE
When: 2008-03-11 14:00:00
Venue: 78-420
Host: Dr Aleksandar Rakic
Abstract:Self-mixing interferometry is a sensing technique based on optical
feedback phenomenon in semiconductor laser cavity. It is capable of
performing a high accuracy measurement comparable with other
interferometry technique and yet extremely simple and inexpensive
where applicable for most industrial and biomedical applications. It
is proved to be an interesting solution for a number of application
measurements, such as absolute distance, displacement, vibration,
velocity and parameter extraction of the semiconductor laser
itself. Vertical-Cavity Surface-Emitting Laser (VCSEL) as a
self-mixing interferometer device provides many advantages compared
with conventional edge-cavity surface-emitting laser. In this
seminar, the potentials of having self-mixing interferometer
technique based on VCSEL for specific contact and non-contact
biomedical application will be highlighted.
Biography:I'm graduated from the Unversity of Putra Malaysia in 2004 with a
Master of Science, majoring in data communication and optical
network. Currently I'm attached with the University of Kebangsaan
Malaysia as one of the teaching staff and now pursuing Ph.D. at the
School of Information Technology and Eectrical Engineering, the
University of Queensland with Malaysian govenment scholarship. My
research interest is to investigate the optical feedback
characteristics in semiconductor lasers for optical communication
and sensing applications.
Type: Ph.D confirmation
Contact:Dr Aleksandar Rakic, seminar host (rakic@itee.uq.edu.au)
or Guido Governatori (ITEE seminar co-ordinator)
(guido@itee.uq.edu.au)