[1] Seoul Natl Univ, Dept Elect & Comp Engn, Seoul 151744, South Korea
[2] Seoul Natl Univ, IBS, Ctr Nanoparticle Res, Seoul 151744, South Korea
[3] Seoul Natl Univ, Inst Entrepreneurial Bio Convergence, Seoul 151744, South Korea
[4] Seoul Natl Univ, Interdisciplinary Program Bioengn, Seoul 151744, South Korea
[5] Kyung Hee Univ, Inst Laser Engn, Dept Elect & Radio Engn, Yongin 446701, Gyeonggi Do, South Korea