Answers are grounded in this paper and cite their sources.
Electric-field assisted silver-sodium ion exchange fabrication of low-loss waveguides in glass has been demonstrated. The process can be very fast and the index distribution controllable.
No takes yet. Share an insight, caveat, or question.
Chartier et al. (1978) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: