TY - JOUR
T1 - Frequency-agile injection-seeded terahertz-wave parametric generation
AU - Moriguchi, Yoshikiyo
AU - Tokizane, Yu
AU - Takida, Yuma
AU - Nawata, Kouji
AU - Nagano, Shigenori
AU - Sato, Manabu
AU - Otsuji, Taiichi
AU - Minamide, Hiroaki
N1 - Funding Information:
Acknowledgment. The authors thank Professor H. Ito, Professor K. Midorikawa, Professor C. Otani (RIKEN), Professor M. Kumano (Tohoku University), and Dr. K. Shibuya (Tokushima University, Tamron Co.) for their valuable discussions. The authors also thank all the members of the Tera-Photonics Laboratory at RIKEN for their helpful cooperation. This study was performed under the RIKEN–Topcon collaboration research project.
Publisher Copyright:
© 2019 Optical Society of America.
PY - 2020/1/1
Y1 - 2020/1/1
N2 - An injection-seeded terahertz(THz)-wave parametric generator (is-TPG) enables accesstolow-frequencyfingerprints of moleculesinthe THz frequency region. However, its conventional scanrepetition rate(SRR)islimited below1Hz. Thus, in this Letter, we propose an electrically controlled tuning system for the is-TPG, which provides high-speed scanning and random hopping agility. We achieved rapid THz frequency scanning on a pulse-by-pulse basis by employing a gain-switched laser diode and a micro-electromechanical system tunable vertical-cavity surface-emitting laser as the pump and seed lasers. A THz spectrum was acquired with a 10 times higher SRR of 10 Hz for the 1.6-3 THz range with a sampling resolution of 4.6 GHz.
AB - An injection-seeded terahertz(THz)-wave parametric generator (is-TPG) enables accesstolow-frequencyfingerprints of moleculesinthe THz frequency region. However, its conventional scanrepetition rate(SRR)islimited below1Hz. Thus, in this Letter, we propose an electrically controlled tuning system for the is-TPG, which provides high-speed scanning and random hopping agility. We achieved rapid THz frequency scanning on a pulse-by-pulse basis by employing a gain-switched laser diode and a micro-electromechanical system tunable vertical-cavity surface-emitting laser as the pump and seed lasers. A THz spectrum was acquired with a 10 times higher SRR of 10 Hz for the 1.6-3 THz range with a sampling resolution of 4.6 GHz.
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U2 - 10.1364/OL.45.000077
DO - 10.1364/OL.45.000077
M3 - Article
AN - SCOPUS:85077517111
SN - 0146-9592
VL - 45
SP - 77
EP - 80
JO - Optics Letters
JF - Optics Letters
IS - 1
ER -