"Keisuke Kondo,Tomoki Tatebe,Shoji Hachuda,Hiroshi Abe,Fumio Koyama,Toshihiko Baba","Fan-beam steering device using a photonic crystal slow-light waveguide with surface diffraction grating",,"Optics Letters",,"Vol. 42","No. 23","pp. 4990-4993",2017,Dec. "keisuke Kondo,Tomoki Tatebe,Xiaodong Gu,Fumio Koyama,Toshihiko Baba","Photonic Crystal Slow-Light Beam Steering Device With Surface Diffraction Grating","The 24th General Congress of the International Commission for Optics",,," Tu2K-02",,,2017,Aug.