3rd order optical nonlinearity enhancement of halochromic phenol red dye immobilized in PVA/silica hybrid host matrix. by Li, Alex Teh Boon, Abu Bakar, Muhammad Aizat, Omar, Ahmad Fairuz, Saheed, Mohamad Shuaib Mohamed, Mohd. Taib, Nur Athirah, Mohammad, Sabah M., Krishnan, Ganesan, Abdullah, Mundzir