[24p-P09-1~5] 3.11 Photonic structures and phenomena

[24p-P09-4] Influx of carriers from ionized space charges into silicon photonic crystal.

〇(B)Takeki Higashiguchi¹, Yuki Takahashi¹, Masanao Fujimoto¹, Kazuya Kikunaga², Yasushi Takahashi¹ (1.Osaka Prefecture Univ., 2.AIST)

Keywords:Electrostatic sensors, Silicon photonic crystal

Photonic crystal nanocavities have been expected to develop high-sensitivity sensors due to their various advantages. We have found that a silicon Raman laser using a high-Q nanocavity stops oscillating when exposed to ionic space charge. Space charge is a cause of explosions in chemical plants and malfunctions in spacecrafts, and there is a demand for detection of space charge because there is no device that can detect it. In this paper, we report on our experiments to confirm the evidence of the laser oscillation stopping mechanism.