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Optica, Optical Materials Express, 7(12), p. 2870, 2022

DOI: 10.1364/ome.461521

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Terahertz optical properties and birefringence in single crystal vanadium doped (100) β-Ga<sub>2</sub>O<sub>3</sub>

Journal article published in 2022 by Ajinkya Punjal ORCID, Shraddha Choudhary ORCID, Maneesha Narayanan, Dhanashree Chemate, Ruta Kulkarni, Arumugam Thamizhavel, Arnab Bhattacharya, S. S. Prabhu ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

We report the terahertz optical properties of vanadium doped (100) β-Ga2O3 using terahertz time-domain spectroscopy (THz-TDS). The V-doped β-Ga2O3 crystal shows strong birefringence in the 0.2-2.4 THz range. Further, phase retardation by the V-doped β-Ga2O3 has been measured over the whole THz range by terahertz time-domain polarimetry (THz-TDP). It is observed that the V-doped β-Ga2O3 crystal behaves both as a quarter waveplate (QWP) at 0.38, 1.08, 1.71, 2.28 THz, and a half waveplate (HWP) at 0.74 and 1.94 THz, respectively.