1. Laser Centre, Ibnu Sina ISIR, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia
2. Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia
3. Faculty of Electrical & Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City, District 7, Vietnam
4. Faculty of Biosciences & Medical Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia