KR20240134050A - 개선된 투과를 갖는 근적외선 광학 간섭 필터 - Google Patents
개선된 투과를 갖는 근적외선 광학 간섭 필터 Download PDFInfo
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- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
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- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
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- G02B5/285—Interference filters comprising deposited thin solid films
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Abstract
Description
도 2는 비정질 수소화된 실리콘 (a-Si:H)의 광학 특성 (투과 및 굴절률)에 대한 수소화의 영향을 나타낸 개략도이다.
도 3은 고정된 수소화 수준의 a-Si:H의 광학 특성 (투과 및 굴절률)에 대한 질소 첨가의 영향을 나타낸 개략도이다.
도 4는 도 1의 스퍼터링 증착 시스템을 사용하여 적절히 제조된 간섭 필터를 나타낸 개략도이다.
Claims (10)
- 간섭 필터로서:
적어도:
질소가 첨가된 비정질 수소화된 실리콘의 층들(a-Si:H,N); 및
상기 a-Si:H,N의 굴절률 미만의 굴절률을 갖는 하나 이상의 유전체의 층 중 복수의 것을 포함하는 층 스택을 포함하며, 여기서 하나 이상의 유전체의 층은 1.9 내지 2.7 범위의 굴절률을 갖는 유전체의 층을 포함하고 여기서 하나 이상의 유전체의 층은 이산화규소(SiO2) 층을 더욱 포함하며,
여기서 상기 간섭 필터는 750-1000 nm 범위의 중심 파장을 갖는 적어도 하나의 통과대역을 갖는, 간섭 필터. - 청구항 1에 있어서,
하나 이상의 유전체 중 적어도 하나는 실리콘 아산화물 (silicon suboxide) (SiOx)을 포함하며, 여기서 x는 정확히 2가 아닌, 간섭 필터. - 청구항 1에 있어서,
하나 이상의 유전체의 제1 층은 a-Si:H의 하나의 층의 제1 면 상에 배열(arrange)되고, 하나 이상의 유전체의 제2 층은 a-Si:H의 하나의 층의 제2 면 상에 배열되는, 간섭 필터. - 청구항 1 내지 3 중 어느 한 항에 있어서,
상기 간섭 필터는 상기 층 스택을 지지하는 투명 기판을 더욱 포함하는, 간섭 필터. - 청구항 4에 있어서,
상기 투명 기판은 유리 기판을 포함하는, 간섭 필터. - 청구항 4에 있어서,
상기 층 스택은 상기 투명 기판의 일 면 상의 제1 층 스택 및 상기 투명 기판의 반대 면 상의 제2 층 스택을 포함하는, 간섭 필터. - 청구항 6에 있어서,
상기 제1 층 스택은 저역 컷오프 파장을 갖는 저역 필터를 정의하고, 상기 제2 층 스택은 고역 컷오프 파장을 갖는 고역 필터를 정의하며, 여기서 적어도 하나의 통과대역은 고역 컷오프 파장과 저역 컷오프 파장 사이에서 정의되는, 간섭 필터. - 청구항 1에 있어서,
a-Si:H,N은 4% 내지 8%의 수소 원자 농도 및 2% 내지 12%의 질소 원자 농도를 갖는, 간섭 필터. - 청구항 1에 있어서,
a-Si:H,N은 3% 내지 7%의 질소 원자 농도를 갖는, 간섭 필터. - 청구항 1의 간섭 필터를 제조하는 방법으로서, 여기서 하나 이상의 유전체 중 적어도 하나는 실리콘-계이며, 상기 방법은:
타겟으로부터 필터 기판상으로 실리콘을 스퍼터링하는 단계; 및
스퍼터링 동안, (i) 각각의 a-Si:H,N 층을 형성하기 위해 a-Si:H,N를 증착(deposit)시키기 위한 수소 및 질소를 포함하는 공정 가스; 및
(ii) 실리콘-계 유전체의 적어도 하나의 층을 형성하기 위해 SiOx을 증착시키기 위한 산소를 포함하는 공정 가스, 실리콘 산질화물(SiOxNy)을 증착시키기 위한 산소 및 질소를 포함하는 공정 가스, 또는 실리콘 질화물(Si3N4)을 증착시키기 위한 질소를 포함하는 공정 가스 중 적어도 하나를 교대시키는 단계를 포함하는, 간섭 필터를 제조하는 방법.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201562117598P | 2015-02-18 | 2015-02-18 | |
US62/117,598 | 2015-02-18 | ||
KR1020237032555A KR102700673B1 (ko) | 2015-02-18 | 2016-02-18 | 개선된 투과를 갖는 근적외선 광학 간섭 필터 |
PCT/US2016/018429 WO2016134122A1 (en) | 2015-02-18 | 2016-02-18 | Near infrared optical interference filters with improved transmission |
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KR1020237032555A Division KR102700673B1 (ko) | 2015-02-18 | 2016-02-18 | 개선된 투과를 갖는 근적외선 광학 간섭 필터 |
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KR1020237032555A Active KR102700673B1 (ko) | 2015-02-18 | 2016-02-18 | 개선된 투과를 갖는 근적외선 광학 간섭 필터 |
KR1020247028521A Pending KR20240134050A (ko) | 2015-02-18 | 2016-02-18 | 개선된 투과를 갖는 근적외선 광학 간섭 필터 |
KR1020177025839A Active KR102583883B1 (ko) | 2015-02-18 | 2016-02-18 | 개선된 투과를 갖는 근적외선 광학 간섭 필터 |
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US (3) | US20160238759A1 (ko) |
EP (4) | EP4414756A3 (ko) |
JP (1) | JP6920994B2 (ko) |
KR (3) | KR102700673B1 (ko) |
CN (2) | CN107209306B (ko) |
TW (1) | TWI743031B (ko) |
WO (1) | WO2016134122A1 (ko) |
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EP3259626B1 (en) | 2021-04-21 |
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EP3839585A2 (en) | 2021-06-23 |
KR20170117533A (ko) | 2017-10-23 |
US11372144B2 (en) | 2022-06-28 |
KR20230140612A (ko) | 2023-10-06 |
EP4163683A1 (en) | 2023-04-12 |
US20190212484A1 (en) | 2019-07-11 |
CN107209306A (zh) | 2017-09-26 |
JP2018506076A (ja) | 2018-03-01 |
EP3839585B1 (en) | 2022-11-09 |
TW201643478A (zh) | 2016-12-16 |
KR102700673B1 (ko) | 2024-08-30 |
TWI743031B (zh) | 2021-10-21 |
CN107209306B (zh) | 2020-10-20 |
US20160238759A1 (en) | 2016-08-18 |
CN112285817A (zh) | 2021-01-29 |
US20220299688A1 (en) | 2022-09-22 |
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