I am new to this field, just started my research. Making Sol-gel for lens purpose, I have UV lamp for curing. Using sintering for cuing of sol-gel creates bubble, research did in MIT. Yet UV lamp is rapid, it comes with IR, there is another option is LED UV no IR is achieved. Its new thing you opted me with Low intensity plasma glow discharge. Will have a look. thanking you for the response Gerro Prinsloo