[20a-A601-1~10] 3.1 Basic optics and frontier of optics (merged with formerly 3.2 Equipment optics and materials)

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[20a-A601-4] Concentration of fluorescent nanodiamonds produced by a detonation process using optical force

〇Yuto Makino^1,2, Saito Yoshiki², Horai Takao², Minowa Yosuke², Ishihara Hajime², Ashida Masaaki² (1.Daicel Corp., 2.Osaka Univ.)

Keywords:

Optical force,Fluorescent nanodiamond,Detonation process

Fluorescent nanodiamonds (F-NDs) have been expected to be implemented as fluorescent probes and single photon sources. Although we demonstrated mass production of the F-NDs using a detonation process recently, the as-received products include non-fluorescent NDs (NF-NDs). In this study, we focused on the optical manipulation of nanomaterials by laser-induced optical force. The optical force applied to the nanomaterials is enhanced by the resonance of the electronic levels. As a result of the irradiation of the resonant light of the F-NDs to the water dispersion of the detonation products, the F-NDs were concentrated owing to the difference in applied optical force between the F-NDs and NF-NDs.