[2] X. Lu, P. Wang, D. Niyato, D. I. Kim, Z. Han. IEEE Commun. Surv. Tuts., 18, 1413(2016).
[3] S. L. Ho, J. Wang, W. N. Fu, M. Sun. IEEE Trans. Magn., 47, 1522(2011).
[4] M. Kline, I. Izyumin, B. Boser, S. Sanders. Proceedings of IEEE Applied Power Electronics Conference and Exposition, 1398(2011).
[5] N. Shinohara. J. Korean Inst. Electromagn. Eng. Sci., 10, 224(2010).
[6] P. S. Yedavalli, T. Riihonen, X. Wang, J. M. Rabaey. IEEE Access, 5, 1743(2017).
[7] D.-H. Rhee, S.-M. Kim. J. Korea Inst. Electro. Commun. Sci., 11, 1219(2016).
[8] S.-M. Kim, S.-M. Kim. Opt. Eng., 52, 043205(2013).
[9] I. Haydaroglu, S. Mutlu. J. Microelectromech. Syst., 24, 155(2015).
[10] J. Fakidis, S. Videv, S. Kucera, H. Claussen, H. Haas. J. Lightwave Technol., 34, 3236(2016).
[11] S. Raavi, B. Arigong, R. Zhou, S. Jung, M. Jin, H. Zhang, H. Kim. Proceedings of Symposium on Wireless and Microwave Circuits and Systems (WMCS), 1(2013).
[12] C. Pani, O. Ray, A. Ghosh, Z. Qadir, M. M. Sarkar, W. Reja. Proceedings of International Conference on Advances in Computing, Communication, and Automation (ICACCA), 1(2016).
[13] A. Saha, S. Iqbal, M. Karmaker, S. F. Zinnat, M. T. Ali. Proceedings of Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 1978(2017).
[14] R. M. Pope, E. S. Fry. Appl. Opt., 36, 8710(1997).
[15] S.-M. Kim, J.-S. Won, S.-H. Nahm. Opt. Eng., 53, 046103(2014).
