Lightwave Logic Inc (LWLG)

[tkg]

"I believe you meant "additive" to silicon".

Broadly speaking yes, but if you search " photonic chips " you can see a result of:

"The technology of such devices is called integrated optics. Photonic integrated circuits are usually fabricated with a wafer-scale technology (involving lithography) on substrates (often called chips) of silicon, silica, or a nonlinear crystal material such as lithium niobate (LiNbO3)."

If ML has his way, polymer photonic chips will be included above!

This is interesting:
https://pubs.rsc.org/en/content/articlelanding/2015/lc/c5lc00670h

"The chip is entirely made from polymers, enabling the use of the devices as low-cost disposables. The microgoblet cavities feature quality factors exceeding 105 and are fabricated from poly(methyl methacrylate) (PMMA) using spin-coating, mask-based optical lithography, wet chemical etching, and thermal reflow."