Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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THz Optical Properties of Pr3+-Doped Selenide Glasses

Pr3+ 도핑된 셀레나이드 유리의 테라헤르츠 광학 특성

  • 강승범 (한국탄소융합기술원) ;
  • 정동철 (한국탄소융합기술원) ;
  • 곽민환 (창원문성대학교 전기공학과)
  • Received : 2017.09.24
  • Accepted : 2017.10.16
  • Published : 2017.11.01
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Abstract

Terahertz time-domain spectroscopy has been used to study the optical properties of $Pr^{3+}-doped$ selenide glasses. The complex refractive indexes of $Pr^{3+}-selenide$ glasses were measured in a frequency range from 0.3 to 1.5 THz. The real and imaginary refractive indexes increased with increasing frequency and $Pr^{3+}$ ion concentration. The obtained result indicated that the phonon modes of the $Pr^{3+}-doped$ selenide glasses shift to lower frequencies with the concentration of $Pr^{3+}$ ions. The theory of far-infrared absorption in amorphous materials was used to analyze the results. The measured data showed that the disorder-induced terahertz absorption increased with increasing $Pr^{3+}$ ion concentration.

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References

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