Optical vortex modes, possessing a spiral wavefront, an annular intensity profile and orbital angular momentum, (m is termed a topological charge), have been intensely investigated in various applications, such as an optical tweezer, quantum information processing, and laser ablation. Recently, we discovered that the wavefront helicity (clock-wise or counter clock-wise spiral direction) of the optical vortex can be transferred to melted metal through a laser ablation process, forming chiral metal nanoneedles [1]. These nanoneedles will open the possibility of new structured materials, such as chiral planer metamaterials.

© 2013 IEEE

PDF Article
More Like This
Silicon chiral bump formed by optical vortex laser ablation

Shun Takizawa, Fuyuto Takahashi, Kohei Toyoda, Katsuhiko Miyamoto, Ryuji Morita, and Takashige Omatsu
CM_5_4 The European Conference on Lasers and Electro-Optics (CLEO_Europe) 2013

Frequency-doubled pico-second vortex fiber laser formed by a stressed Yb-doped fiber MOPA system

Mio Koyama, Tetsuya Hirose, Akito Shimomura, Katsuhiko Miyamoto, and Takashige Omatsu
CJ_6_6 The European Conference on Lasers and Electro-Optics (CLEO_Europe) 2013

Optical Vortex Lasers for Chiral Material Science

T. Omatsu
AF2A.6 Advanced Solid State Lasers (ASSL) 2013


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription