[18p-B2-1~15] 4.6 Terahertz Photonics

5:30 PM - 5:45 PM JST(8:30 AM - 8:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation AwardEnglish Presentation

[18p-B2-13] New Composition Signal Among Comb-Like Terahertz Spectrum Generated Using Dual Multimode Laser Diodes

〇(D)Yuanhao Zeng¹, Kosaku Kato¹, Verdad C. Agulto¹, Fumiyoshi Kuwashima², Masahiko Tani^1,3, Masashi Yoshimura¹, Makoto Nakajima¹ (1.ILE, Osaka Univ., 2.Fukui Univ. of Tech., 3.FIR-UF)

Keywords:

multimode laser diode,Terahertz Time Domian Spectroscopy,Terahertz Comb

A continuous wave multimode laser diode (CW-MLD) based terahertz time-domain spectroscopy (THz-TDS) system offers a cost-effective alternative to systems using femtosecond lasers. A 660 nm MLD can generate sub-THz spectra. However, the THz spectra produced by a single MLD have a comb-like structure with fixed THz peaks, leading to gaps in spectral information. In this study, we demonstrate that using two MLDs can generate new signal components to fill these spectral gaps.