[17p-S4_201-1~13] CS.5 Code-sharing Session of 6.2 & KS1

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)

[17p-S4_201-2] Temperature dependence of multiphoton-excited fluorescence from fluorescent microdiamond

〇(M2)Yuta Kimura¹, Muneaki Hase¹ (1.Tsukuba Univ.)

Keywords:

NV center,diamond,Nonlinear optics

Nanometer to micrometer scale diamonds containing nitrogen-vacancy centers have attracted as promising platforms for local temperature sensing in biological environments and device applications. However, conventional approaches based on singlephoton-excited fluorescence under continuous-wave green laser illumination are limited in sensitivity and excitation wavelength. In this study, we investigated the temperature dependence of multiphoton-excited fluorescence using a near-infrared femtosecond laser and assessed the temperature sensing accuracy.