Development of a terahertz time-domain spectroscopy setup based on a 1550 nm femtosecond fiber laser

Authors

John Daniel Vasquez Materials Science and Engineering Program, University of the Philippines Diliman
Alexander De Los Reyes National Institute of Physics, University of the Philippines Diliman
Maria Angela Faustino Materials Science and Engineering Program, University of the Philippines Diliman
Ivan Cedrick Verona National Institute of Physics, University of the Philippines Diliman
Hannah Bardolaza Materials Science and Engineering Program, University of the Philippines Diliman
Armando Somintac National Institute of Physics, University of the Philippines Diliman
Arnel Salvador National Institute of Physics, University of the Philippines Diliman
Elmer Estacio National Institute of Physics, University of the Philippines Diliman

Abstract

We report on the design, construction, and development of a 1550 nm femtosecond fiber laser-based terahertz time-domain spectroscopy (THz-TDS) setup. A p-InAs (100) bare semiconductor wafer was used as the emitter and a low-temperature-grown(LTG)-InGaAs bow tie photoconductive antenna (PCA) was used as detector. The measured THz emission from p-InAs has peak-to-peak amplitude of 116 pA, pulse width of 2 ps, bandwidth of 2 THz, and signal-to-noise ratio of 3 orders of magnitude.

About the Speaker

John Daniel Vasquez, Materials Science and Engineering Program, University of the Philippines Diliman

We report on the design, construction, and development of a 1550 nm femtosecond fiber laser-based
terahertz time-domain spectroscopy (THz-TDS) setup. A p-InAs bare semiconductor wafer was used
as the emitter and a low-temperature-grown(LTG)-InGaAs bow tie photoconductive antenna (PCA)
was used as detector. The measured THz emission from p-InAs has peak-to-peak amplitude of 116
uA, pulse width of 2 ps, bandwidth of 2 THz, and signal-to-noise ratio of 3 orders of magnitude.

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Published

2019-05-23

How to Cite

[1]

JD Vasquez, A De Los Reyes, MA Faustino, IC Verona, H Bardolaza, A Somintac, A Salvador, and E Estacio, Development of a terahertz time-domain spectroscopy setup based on a 1550 nm femtosecond fiber laser, Proceedings of the Samahang Pisika ng Pilipinas 37, SPP-2019-PA-39 (2019). URL: https://proceedings.spp-online.org/article/view/SPP-2019-PA-39.