1. Jijun Feng and Ryoichi Akimoto, “Silicon nitride polarizing beam splitter with potential application for intersubband-transition-based all-optical gate device”, Jpn. J. Appl. Phys. 54, 04DG08 (2015).

2. J. Feng* and R. Akimoto, “BeZnCdSe quantum-well ridge-waveguide laser diodes under low threshold room-temperature continuous-wave operation,” Applied Physics Letters 107, 161101(2015).

3. Jijun Feng and Ryoichi Akimoto, Jijun Feng and Ryoichi Akimoto, “T-shape suspended silicon nitride ring resonator for optical sensing applications”, IEEE Photon. Technol. Lett. 27, 1601-1604 (2015).

4. Jijun Feng and Ryoichi Akimoto, “BeZnCdSe quantum-well ridge-waveguide laser diodes under low threshold room-temperature continuous-wave operation”, Applied Physics Letters 107, 161101 (2015).