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

  • 제30권11호
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  • Pages.745-750
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  • 2017
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  • 1226-7945(pISSN)
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  • 2288-3258(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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Pr3+ 도핑된 셀레나이드 유리의 테라헤르츠 광학 특성

THz Optical Properties of Pr3+-Doped Selenide Glasses

  • 강승범 (한국탄소융합기술원) ;
  • 정동철 (한국탄소융합기술원) ;
  • 곽민환 (창원문성대학교 전기공학과)
  • 투고 : 2017.09.24
  • 심사 : 2017.10.16
  • 발행 : 2017.11.01
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초록

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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참고문헌

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