[15p-K305-1~14] 3.1 Basic optics and frontier of optics

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)

[15p-K305-3] Bubble channel using precise heat distribution by multiphoton process

〇Hironori Ito¹, Yuki Uchiyama¹, Sosuke Omata¹, Hiroto Yamada¹, Satoshi Honma¹ (1.Univ. of Yamanashi)

Keywords:

femtosecond pulsed laser,microfluidics,multiphoton process

A new method for controlling bubble position with high spatial resolution using multiphoton absorption regions was proposed and demonstrated. A pulsed laser focused on the solution generated a sharp thermal gradient at the focal point, trapping bubbles with a force in excess of 380 pN. Using this effect, bubbles could be guided with high precision along a 1 mm long linear multiphoton absorption distribution channel. The proposed method, combined with the high-speed and precise energy distribution techniques of optics, offers an innovative proposal for many fields related to fluidics.