[21p-P19-1~4] 3.10 Photonic structures and phenomena (formerly 3.11)

[21p-P19-4] Detection of ionized space charges using a photonic-crystal-waveguide module (II) ~Multichannel operation~

〇Kousei Otsuka¹, Ayumi Ishihara², Kazuya Kikunaga³, Yasushi Takahashi¹ (1.Osaka Met.Univ., 2.Osaka Pref. Univ., 3.AIST.)

Keywords:

photonic crystal,space charges,sensing

We are currently developing a small space charge sensor using a silicon photonic crystal device. Last time, we reported the demonstration of space charge detection using a single small sensor. One SLD was used as the light source, and the light was split into four by a fiber splitter and entered into a small sensor. When a space charge enters the silicon element, the intensity of the transmitted light drops and the charge can be detected.