1. Photonics Technology Laboratory, Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
2. Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
3. Wireless and Photonics Network Research Center, Engineering and Technology Complex, Universiti Putra Malaysia, Serdang, 43400, Malaysia
4. Institute of Islam Hadhari, Universiti Kebangsaan Malaysia, Bangi, 43600, Malaysia