[16p-P05-1~20] 12.2 Characterization and Materials Physics

[16p-P05-20] One-shot measurement of the threshold excitation intensity of TTA-UC system

〇Kenji Kamada¹, Claire Heck¹ (1.AIST)

Keywords:

threshold excitation intensity,one-shot measurement,triplet-triplet annihilation photon upconversion

One-shot evaluation method of threshold excitation intensity of triplet-triplet annihilation (TTA) photon upconversion (UC) system was developed by taking the image of UC emission. The evaluation is made by comparing the 2D spatial profiles of UC emission and Gaussian excitation beam. The developed method requires much shorter time for measurement than the conventional method and opens possibility for the real time measurement of the threshold excitation intensity.