Optical Property of Porous Silicon Produced by Metal-Assisted Etching Yamakawa, Kano ; Sakamoto, Susumu ; Fukumuro, Naoki ; Yae, Shinji Abstract Publication: ECS Transactions Pub Date: September 2015 DOI: 10.1149/06902.0185ecst Bibcode: 2015ECSTr..69b.185Y