A high sensitivity refractive index sensor based on leaky mode coupler of MMI by Saimon, Siti Mahfuza, Mohd. Noor, Muhammad Yusof, Azmi, Asrul Izam, Abdullah, Ahmad Sharmi, Ibrahim, Mohd. Haniff, Ahmad, Mohd. Hafizi, Salim, Mohd. Rashidi, Othman, Ahmad Fauzi, Abdulsalam Hamid Alqazoun, Fouziyah