• Title/Summary/Keyword: 홀로그래픽 리소그라피

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Application of Si-$SiO_2$ Based Two-Dimension Photonic Crystal Waveguides (Si-$SiO_2$ 기반 2차원 광자결정 도파로의 응용)

  • Yeo, Jong-Bin;Kim, Jun-Hyung;Im, Woo-Sik;Lee, Eun-Sun;Lee, Hyun-Yong
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2006.06a
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    • pp.465-466
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    • 2006
  • 서로 다른 굴절률을 갖는 유전재료를 주기적으로 배열함으로써 광자금지대(PBG)를 형성시킬 수 있는 2 차원(2D)광자결정배열에 선결함(line defects)을 줌으로써 기존의 평판형광도파로(PLC)와는 다른 개념의 광자결정도파로를 제작할 수 있다. 특히, 광자결정도파로는 급격한 굽힘(bending)에도 저손실의 효과를 갖도록 할 수 있기 때문에 광집적회로에 효과적으로 적용된다. 본 연구에서는 정방형 격자구조의 2차원 광자결정에 대한 광자밴드구조를 구하고 이로부터 추출된 구조매개변수를 이용하여 광자결정도파로를 설계하고 그의 특성을 평가하였다. 특히, 광자결정도파로와 PLC형도파로 특성을 비교하였다. 설계된 광자결정 도파로를 전자빔 및 홀로그래픽 리소그라피를 이용하여 제작, 평가할 것이다.

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Total-internal-reflection Holographic Photo-lithography by Using Incoherent Light (비가간섭광을 이용한 내부전반사 홀로그래픽 리소그라피)

  • Lee, Joon-Sub;Park, Woo-Jae;Lee, Ji-Whan;Song, Seok-Ho;Lee, Sung-Jin
    • Korean Journal of Optics and Photonics
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    • v.20 no.6
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    • pp.334-338
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    • 2009
  • Recently, with increasing demand for flat-panel display product, methods for large area patterning are required. TIR (total internal reflection) holographic photo-lithography isstudied as one of the methods of large area lithography. In conventional TIR holography, light sources for hologram recording and image reconstruction are coherent beams such as laser beams. If the image is reconstructed with an incoherent light source such a UV lamp, the image noise from the coherence of light will be reduced and the UV lamp will be a better light source for large area exposure. We analyzed the effect of spectral bandwidth and angular bandwidth of the light source in image reconstruction and verified image blurring with experiments. For large area patterning which has micro-scale line width, it is expected that TIR holographic photo lithography by UV lamp will become a low-noise and low-priced technique.