KR20090024965A - Cars 현미경을 이용한 유기 박막의 화학종 및 두께동시 광학분석장치 - Google Patents
Cars 현미경을 이용한 유기 박막의 화학종 및 두께동시 광학분석장치 Download PDFInfo
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- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
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Abstract
Description
Claims (15)
- 스톡스광과 펌프광을 박막에 조사하여 산란되는 CARS(Coherent Anti-stokes Raman Scattering) 신호의 파장 및 세기를 측정하여 상기 박막의 두께 측정 및 화학종 분석을 하는 것을 특징으로 하는 CARS 현미경을 이용한 광학분석장치.
- 제 1 항에 있어서,상기 박막은 유기물 또는 무기물 박막인 것을 특징으로 하는 CARS 현미경을 이용한 광학분석장치.
- 제 2 항에 있어서,상기 박막은 단분자 유기 화합물, 유기 고분자 화합물 및 바이오 물질, 또는 이들의 혼합물로부터 선택되는 화합물을 포함하는 것을 특징으로 하는 CARS 현미경을 이용한 광학분석장치.
- 제 1 항에 있어서,상기 박막은 서로 다른 화합물이 2층 이상으로 적층된 것을 특징으로 하는 CARS 현미경을 이용한 광학분석장치.
- 제 1 항에 있어서,산란되는 상기 CARS 신호세기는 박막의 두께의 제곱에 비례하는 것을 특징으로 하는 CARS 현미경을 이용한 광학분석장치.
- 제 5 항에 있어서,스톡스광은 근 적외선 영역대의 빔을 사용하는 것을 특징으로 하는 CARS 현미경을 이용한 광학분석장치.
- 제 5 항에 있어서,상기 CARS 신호세기는 박막의 라만 진동수에서 측정되는 것을 특징으로 하는 CARS 현미경을 이용한 광학분석장치.
- 제 1 항에 있어서,상기 펌프광은 단일 파장(single line)광이고, 스톡스광은 광대역(wide band) 파장광인 것을 특징으로 하는 CARS 현미경을 이용한 광학분석장치.
- 제 1 항 내지 제 8 항의 어느 한 항에 있어서,유기 박막에의 스톡스광과 펌프광의 조사 장치는스톡스광 혹은 탐침광을 발생시키는 광원(10);상기 광원(10)으로부터 발생된 광을 분할하는 광분할기(20);상기 광분할기(20)에 의해 분할된 빔의 일부가 통과되며 광대역의 안정된 빔 분포를 갖도록 하는 광자결정 광섬유(Photonic Crystal Fiber)(30);상기 광자결정 광섬유(30)에 의해 안정된 빔이 통과되며 저주파수의 빔을 통과되도록 하여 근적외선 영역의 스톡스광이 되도록 하는 저주파 통과필터(Low Pass Filter)(40);상기 광분할기(20)에 의해 분할된 나머지의 빔이 통과되며 파장을 좁게 하여 고분자 시료의 매질분자를 들뜬 상태로 만드는 펌프광이 통과되도록 하는 협대역 투과필터(Narrow Band Pass Filter)(50); 및상기 저주파 통과필터(40)를 통과한 스톡스광과 상기 협대역 투과필터(50)를 통과한 펌프광을 공간적으로 결합시키는 노치 필터(Notch Filter)(60); 및상기 노치 필터(60)에 의해 결합된 빔을 고분자 시료에 주사시켜 CARS 신호를 발생시키는 스캔장치(70);를 포함하는 것을 특징으로 하는 CARS 현미경을 이용한 광학분석장치.
- 제 1 항 내지 제 8 항의 어느 한 항에 있어서,산란되는 CARS(Coherent Anti-stokes Raman Scattering) 신호의 측정 장치는주사된 스톡스광 및 펌프광을 차단하고 단파장의 CARS 신호를 통과시키는 단파장투과필터(Short Pass Filter)(80);상기 단파장투과필터(80)를 통과한 CARS 신호를 단색화하여 분광하는 분광기(90);상기 분광기(90)에 의해 분광된 CARS 신호를 검출하는 검출기(100); 및상기 검출기(100)로부터 검출된 CARS 신호를 전기적인 신호로 전환하고 전환된 전기적 신호를 이용하여 고분자 종류 및 고분자 박막 두께를 동시에 분석하는 분석기(110);를 포함하는 것을 특징으로 하는 CARS 현미경을 이용한 광학분석장치.
- 제 9 항에 있어서,상기 협대역 투과필터(50)의 전단 또는 후단에 설치되어 상기 스톡스광과 상기 펌프광의 광경로를 시간적으로 지연시켜 일치시키는 광 지연기(Optical Delay)(120)가 더 구비된 것을 특징으로 하는 CARS 현미경을 이용한 광학분석장치.
- 제 11 항에 있어서,상기 협대역 투과필터(50)는 빔의 파장이 10 내지 1.0 nm의 범위를 갖는 펌프광을 통과시키는 것을 특징으로 하는 CARS 현미경을 이용한 광학분석장치.
- 제 9 항에 있어서,상기 광분할기(20)는 분할된 일부의 빔과 나머지의 빔의 비율이 3~4:7~6으로 분할되도록 하는 것을 특징으로 하는 CARS 현미경을 이용한 광학분석장치.
- 제 9 항에 있어서,상기 광자결정 광섬유(30)의 길이는 30~40cm인 것을 특징으로 하는 CARS 현 미경을 이용한 광학분석장치.
- 제 10 항에 있어서,상기 검출기(100)는 광을 증폭시켜 검출하는 광전증배관(PMT: Photomultiplier Tube)인 것을 특징으로 하는 CARS 현미경을 이용한 광학분석장치.
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KR1020070089962A KR100917913B1 (ko) | 2007-09-05 | 2007-09-05 | Cars 현미경을 이용한 유기 박막의 화학종 및 두께동시 광학분석장치 |
PCT/KR2008/005229 WO2009031838A1 (en) | 2007-09-05 | 2008-09-04 | Spectral analyzer for measuring the thickness and identification of chemicals of organic thin films using cars microscopy |
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WO2010131785A1 (ko) * | 2009-05-11 | 2010-11-18 | 한국표준과학연구원 | 비선형 광학현미경을 이용한 혈관 내 지질의 병리적 변화 진단시스템 |
KR101064672B1 (ko) * | 2009-08-18 | 2011-09-20 | 한국과학기술원 | 2방향 선주사 방식을 적용한 공초점 레이저 주사 현미경 및 이를 이용한 영상처리 방법 |
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