Fwd: Seminar 14th June 2016 by Marteijn de Sterke
Mohd Hanif Yaacob
From: Ahmad Rifqi Md Zain <ri...@ukm.edu.my>
Date: Tue, Jun 7, 2016 at 10:11 AM
Subject: Seminar 14th June 2016 by Marteijn de Sterke
To: Mohd Adzir Mahdi <m...@upm.edu.my>, ha...@eng.upm.edu.my, Ahmad Ashrif A BAKAR <ash...@ukm.edu.my>
Dear All,
We will be organising a seminar by Prof Martijn De Sterke (OSA Board of Director, Former Editor in Chief of Optics Express) next week. He is currently a Deputy Director of CUDOS, University of Sydney (see attachment for his CV) . Details are as follow;
Date : 14th June 2016 (Tuesday)
Time : 0930-12.00
Venue : Meeting room, Level 5, Research Building, IMEN, UKM
Title : 1. Complete light absorption in an ultrathin film
2. Chalcogenide materials.
3. scientific publishing (primarily aimed at students and early—career researchers).
Abstract as below :
Complete light absorption in an ultrathin film
Martijn de Sterke
The complete absorption of EM radiation in a layer that is much thinner than the wavelength is neat in its own right and has applications ranging from stealth technology to improved solar cells and detectors. First achieved for radar in the 2nd world war, at shorter wavelengths it has relied on exotic materials and on metamaterials. We demonstrated recently that total light absorption can be achieved in ultra-thin gratings made from conventional materials, including weakly-absorbing semiconductors: an 41 nm thick antimony sulphide grating absorbs almost 99% in red part of the spectrum (591 nm). A planar reference layer of the same thickness absorbs A = 7.7%.
------------------------------------------------------
Dr. Ahmad Rifqi Md Zain,
Senior Lecturer / Research Fellow,
Institute of Microengineering and Nanoelectronics (IMEN),
Level 4, Research Complex,
The National University of Malaysia (UKM),