Abstract:
PROBLEM TO BE SOLVED: To provide an electromagnetic wave polarization direction detection device and its detection method. SOLUTION: The electromagnetic wave polarization direction detection device includes a first step of installing a carbon nanotube structure containing a plurality of carbon nanotubes arranged in the same direction in a vacuum environment; a second step of providing an electromagnetic wave emission source and radiating an electromagnetic wave having a polarization direction perpendicular to the plane of the carbon nanotube structure; and a third step of rotating the carbon nanotube structure in the plane perpendicular to the radiation direction of the electromagnetic wave and measuring the polarization direction of the electromagnetic wave by the change in the light radiated from the carbon nanotube structure. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an aligner capable of determining the appropriate polarization state of illuminating light to a mask and obtaining a desired polarization state with appropriate optical adjustment as required. SOLUTION: The aligner having illuminating systems (1 to 8) for illuminating the mask (M) and exposing a pattern formed on the mask to a photosensitive plate (W) has a polarized state measuring means (9) for measuring the polarized state of the illuminating light to at least either of the mask or the photosensitive plate. The illuminating system also has a polarized state variable means (3) for varying the polarized state of the illuminating light to the mask. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
피검광학계에 편광방향이 서로 다른 복수의 직선 편광의 광을 조사하고, 상기 피검광학계의 복굴절량(R)과 진상축(φ)을 포함한 편광특성을 측정하는 방법은, 상기 피검광학계에 편광방향(θ)을 가진 직선편광의 광을 조사하는 스텝과, 상기 피검광학계를 투과한 광의 중심량(P)를 취득하는 스텝과, P=-R·cos(2θ-φ) 또는 P=R·cos(2θ-φ)로부터 상기 복굴절량(R)과 상기 진상축(φ)을 취득하는 스텝을 포함하고 있다.