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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 1997.3
- 수록면
- 5 - 9 (5page)
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초록· 키워드
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Energy transfer direction in Er³+-Tm³+-codoped fluorozirconate glasses has been studied. For Er³+-Tm³+-codoped glasses, the dependence of the green emission intensity on the pump power (Pex) of 800 ㎚ has ranged from (Pex)² to (Pex)³. From this multistep absorption, a 1.48 ㎛ emission from the ³F₄→³H₄, transition on Tm³ ion has been found to transfer into ⁴I₁₃/₂, ⁴I_(9/2) and ⁴S⅔ on Er³ ion. In case of the 1.06 ㎛ pumping, the emission ratio of ³H₄ level in Tm³+ to ⁴I₁₃/₂ in Er³+ showed that the amount of the energy transfer from Tm³+ into Er³+ increased with the increasing concentration of Tm³+ ion. Our two kinds of pumping scheme suggest that the direction of dominant energy transfer between Er³+ and Tm³+ should be dependent on whether the ³F₄, level resonates in Tm³+ the level or not.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. EXPERIMENTAL
Ⅲ. RESULTS AND DISCUSSION
Ⅳ. CONCLUSIONS
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2009-425-018158710