• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2000년도 춘계학술대회 논문집 디스플레이 광소자 분야
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• pp.191-194
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• 2000

In this study, we have investigated the photoinduced birefringence(PB), ${\Delta}n$ in chalcogenide $As_{40}Ge_{10}Se_{15}S_{35}$ thin film with a He-Ne Laser at 633nm as In this study, we have investigated the photoinduced birefringence(PB), ${\Delta}n$ in chalcogenide $As_{40}Ge_{10}Se_{15}S_{35}$ thin film with a He-Ne Laser at 633nm as a pumping beam and a semiconductor laser at 780nm as a probing beam. The PB for the variable thickness of thin films was investigated. The thickness of the thin films is about $0.4{\mu}m$, $0.92{\mu}m$, $1.4{\mu}m$, $2.0{\mu}m$, respectively. The experimental result of PB in chalcogenide thin films was represented higher PB in the thickness of thin film, $0.92{\mu}m$. It was meant to represent higher PB in the thickness of the film that was made closely the optimal thickness, $0.96{\mu}m$. The optimal thickness of thin film, $0.96{\mu}m$ was calculated by the penetration depth of the pumping light Also, the PB in thickness of $0.92{\mu}m$ was obtained almost two times higher 0.15 than other thickness of thin films.

• 한국섬유공학회:학술대회논문집
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• 한국섬유공학회 1993년도 ACT 93
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• pp.771-775
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• 1993

• 한국광과학회:학술대회논문집
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• 한국광과학회 1997년도 학술대회지
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• pp.15-15
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• 1997

• 한국섬유공학회:학술대회논문집
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• 한국섬유공학회 1988년도 학술발표초록집
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• pp.6-7
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• 1988

• 한국섬유공학회:학술대회논문집
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• 한국섬유공학회 1988년도 학술발표초록집
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• pp.8-9
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• 1988

• 한국섬유공학회:학술대회논문집
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• 한국섬유공학회 1987년도 학술발표초록집
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• pp.24-24
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• 1987

• Bulletin of the Korean Chemical Society
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• 제19권5호
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• pp.584-587
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• 1998

• Bulletin of the Korean Chemical Society
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• 제21권3호
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• pp.328-330
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• 2000

• 한국레이저가공학회지
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• 제15권1호
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• pp.15-19
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• 2012

The fabrication of internal diffraction gratings with photoinduced refractive index modification in transparent materials was demonstrated using low-density plasma formation excited by a femtosecond (130 fs) Ti: sapphire laser (${\lambda}_p$=800 nm). The refractive index modifications with diameters ranging from $1{\mu}m$ to $3{\mu}m$ were photoinduced after plasma formation occurred upon irradiation with peak intensities of more than $2.0{\times}10^{13}W/cm^2$. The graded refractive index profile was fabricated to be a symmetric around from the center of the point at which low-density plasma occurred.

• 한국섬유공학회:학술대회논문집
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• 한국섬유공학회 2002년도 봄 학술발표회 논문집
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• pp.341-343
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• 2002

인간의 생활수준은 산업의 발달과 함께 꾸준히 향상되고 있으나 환경은 산업발달의 부산물로 배출되는 공해물질들로 인하여 급속히 열악해지고 있다. 대표적인 악취물질로는 암모니아, 황화수소 및 트리메틸아민 등을 들 수 있으며 공간으로부터 악취분자들을 적극적으로 제거하는 탈취소취법에 오늘날 많은 관심이 집중되고 있다. 일반적인 탈취재료는 활성탄, 제올라이트 등의 무기물이 오래전부터 사용되고 있으나 이들의 대표적인 악취물질인 암모니아가스, 황화수소 등 유해가스에 대한 흡착능력은 매우 낮으며 흡착제 형태가 입상이기 때문에 성형가공면에서 한계가 있다. (중략)