"Yusuke Nagai,ShaoChieh Chen,Kotaro Kajikawa","Two-dimensional coherent random laser in photonic crystal fiber with dye-doped nematic liquid crystal",,"Applied Optics",,"Vol. 56",,"pp. 8969-8972",2017,Nov.
"長井悠佑","色素添加ネマチック液晶レーザー",,,,,,,2017,Sept.
"長井悠佑","色素添加ネマチック液晶レーザー",,,,,,,2017,Sept.
"長井悠佑","色素添加ネマチック液晶レーザー",,,,,,,2017,Sept.
"長井悠佑","色素添加ネマチック液晶レーザー",,,,,,,2017,Sept.
"Yusuke Nagai,Ryushi Fujimura,Kotaro Kajikawa","Coherent random laser fluid of nematic liquid crystal emulsions",,"Japanese Journal of Applied Physics",,"Vol. 53",,"  01AE05",2014,Jan.
"Y. Nagai,R. Fujimura,Kotaro Kajikawa","Core-resonance cylindrical whispering gallery mode laser of dye-doped nematic liquid crystal",,"Journal of Optical Society of America B",,"  30",,"  2233",2013,Aug.
"Kotaro Kajikawa,Yusuke Nagai,Yuichi Uchiho,Gopakumar Ramakrishnan,Nishant Kumar,Gopika K. P. Ramanandan,Paul C. M. Planken","Terahertz emission from surface-immobilized gold nanospheres",,"Optics Letters",,"Vol. 37","No. 19","pp. 4053-4055",2012,Sept.
"Yusuke Nagai,Tatsuya Yamaguchi,Kotaro Kajikawa","Angular-Resolved Polarized Surface Enhanced Raman Spectroscopy",,"J. Phys. Chem. C",,"Vol. 116",,"pp. 9716-9723",2012,Mar.
"長井悠佑,山口達也,梶川浩太郎","表面増強偏光ラマンスペクトルによる金ナノ粒子への分子吸着構造の評価","第58回応用物理学関連連合講演会",,,,,,2011,Mar.