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eLearning

SINAPSE experts from around Scotland have developed ten online modules designed to explain medical imaging. They are freely available and are intended for non-specialists.


Edinburgh Imaging Academy at the University of Edinburgh offers the following online programmes through a virtual learning environment:

Neuroimaging for Research MSc/Dip/Cert

Imaging MSc/Dip/Cert

PET-MR Principles & Applications Cert

Applied Medical Image Analysis Cert

Online Short Courses

Individually Addressable AlInGaN Micro-LED Arrays With CMOS Control and Subnanosecond Output Pulses

Author(s): J. J. D. McKendry, B. R. Rae, Z. Gong, K. R. Muir, B. Guilhabert, D. Massoubre, E. Gu, D. Renshaw, M. D. Dawson, R. K. Henderson

Abstract:
We report the fabrication and characterization of an ultraviolet (370 nm) emitting AlInGaN-based micro-light-emitting diode (micro-LED) array integrated with complementary metal-oxide-semiconductor control electronics. This configuration allows an 8 x 8 array of micro-LED pixels, each of 72-mu m diameter, to be individually addressed. The micro-LED pixels can be driven in direct current (dc), square wave, or pulsed operation, with linear feedback shift registers (LFSRs) allowing the output of the micro-LED pixels to mimic that of an optical data transmitter. We present the optical output power versus drive current characteristics of an individual pixel, which show a micro-LED output power of up to 570 mu W in dc operation. Representative optical pulse trains demonstrating the micro-LEDs driven in square wave and LFSR modes, and controlled optical pulsewidths from 300 ps to 40 ns are also presented.

Full version: Available here

Click the link to go to an external website with the full version of the paper


ISBN: 1041-1135
Publication Year: 2009
Periodical: Ieee Photonics Technology Letters
Periodical Number: 9-12
Volume: 21
Pages: 811-813
Author Address: