KR20200047558A - 위상-시프팅 리플렉터를 갖는 음향-광학 시스템 - Google Patents
위상-시프팅 리플렉터를 갖는 음향-광학 시스템 Download PDFInfo
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Abstract
Description
도 2는 다중-축 빔 위치 지정기에서의 AOD의 배열을 개략적으로 도시한다.
도 3, 4, 5 및 7은 다양한 실시예에 따른 다중-축 빔 위치 지정기를 개략적으로 도시하는 사시도이다.
도 6 및 8은 다양한 실시예에 따른 다중-축 빔 위치 지정기에서 1/4파 위상-시프팅 리플렉터에 대한 위상 시프트와 입사각 사이의 예시적인 관계를 나타내는 그래프이다.
Claims (22)
- 빔 위치 지정기로서,
선형으로 편광된 레이저 광의 입사 빔을 회절시키도록 동작하는 제1 음향-광학(AO) 편향기(AOD) - 상기 제1 AOD는 제1 회절 축을 가지며, 상기 제1 AOD는 상기 제1 회절 축이 상기 선형으로 편광된 레이저 광의 편광 평면과 미리 결정된 공간적인 관계를 갖도록 배향됨 -; 및
광이 상기 제1 AOD로부터 전파될 수 있는 빔 경로 내에 배열된 적어도 하나의 위상-시프팅 리플렉터(phase-shifting reflector) - 상기 적어도 하나의 위상-시프팅 리플렉터는 상기 제1 AOD에 의해 회절된 광의 상기 편광 평면을 회전시키도록 구성되고 배향됨 -을 포함하는, 빔 위치 지정기. - 제1항에 있어서, 상기 빔 경로 내에 배열되고 선형으로 편광된 레이저 광의 입사 빔을 회절시키도록 동작하는 제2 AOD를 더 포함하고, 상기 제2 AOD는 제2 회절 축을 가지며, 상기 적어도 하나의 위상-시프팅 리플렉터는 제1 AOD와 제2 AOD 사이에 배열되는, 빔 위치 지정기.
- 제2항에 있어서, 상기 제1 회절 축은 상기 제2 회절 축에 평행한, 빔 위치 지정기.
- 제2항에 있어서, 상기 제1 회절 축은 상기 제2 회절 축에 직교하는, 빔 위치 지정기.
- 제1항에 있어서, 상기 제1 AOD와 상기 제2 AOD 사이의 빔 경로 내에 배열된 적어도 하나의 영 위상-시프트 리플렉터를 더 포함하는, 빔 위치 지정기.
- 제1항에 있어서, 상기 적어도 하나의 위상-시프팅 리플렉터는 반파 위상-시프팅 리플렉터를 포함하는, 빔 위치 지정기.
- 제1항에 있어서, 상기 적어도 하나의 위상-시프팅 리플렉터는 두 개의 1/4파 위상-시프팅 리플렉터를 포함하는, 빔 위치 지정기.
- 제1항에 있어서, 상기 두 개의 1/4파 위상-시프팅 리플렉터는:
제1 리플렉터 표면을 갖는 제1 1/4파 위상-시프팅 리플렉터; 및
제2 리플렉터 표면을 갖는 제2 1/4파 위상-시프팅 리플렉터를 포함하고,
상기 제1 1/4파 위상-시프팅 리플렉터 및 상기 제2 1/4파 위상-시프팅 리플렉터는 상기 제1 리플렉터 표면의 표면 법선이 상기 제2 리플렉터 표면의 표면 법선에 직교하도록 서로에 대해 배향되는, 빔 위치 지정기. - 제1항에 있어서, 상기 두 개의 1/4파 위상-시프팅 리플렉터는:
제1 리플렉터 표면을 갖는 제1 1/4파 위상-시프팅 리플렉터; 및
제2 리플렉터 표면을 갖는 제2 1/4파 위상-시프팅 리플렉터를 포함하고,
상기 제1 1/4파 위상-시프팅 리플렉터 및 상기 제2 1/4파 위상-시프팅 리플렉터는 상기 제1 리플렉터 표면의 표면 법선이 상기 제2 리플렉터 표면의 표면 법선에 평행하도록 서로에 대해 배향되는, 빔 위치 지정기. - 제1항에 있어서, 상기 빔 경로 내에 배열된 적어도 하나의 검류계 미러를 더 포함하고, 상기 적어도 하나의 위상-시프팅 리플렉터는 상기 제1 AOD와 상기 검류계 미러 사이에 배열되는, 빔 위치 지정기.
- 제1항에 있어서, 상기 적어도 하나의 위상-시프팅 리플렉터의 배향은 상기 제1 AOD에 대해 고정되는, 빔 위치 지정기.
- 제1항에 있어서, 상기 적어도 하나의 위상-시프팅 리플렉터의 배향은 상기 제1 AOD에 대해 가변적인, 빔 위치 지정기.
- 제1항에 있어서, 상기 제1 AOD는 게르마늄을 포함하는 재료로 형성된 AO 셀을 포함하는, 빔 위치 지정기.
- 제1항에 있어서, 상기 제1 AOD는 석영을 포함하는 재료로 형성된 AO 셀을 포함하는, 빔 위치 지정기.
- 제1항에 있어서, 상기 적어도 하나의 위상-시프팅 리플렉터는 실리콘 및 구리로 구성된 그룹으로부터 선택된 적어도 하나의 재료를 포함하는 재료로 형성되는, 빔 위치 지정기.
- 제1항에 있어서, 상기 제1 회절 축과 상기 선형으로 편광된 레이저 광의 상기 편광 평면 사이의 상기 미리 결정된 공간적인 관계는 상기 제1 회절 축이 상기 선형으로 편광된 레이저 광의 편광 평면에 평행할 때 충족되는, 빔 위치 지정기.
- 제1항에 있어서, 상기 제1 회절 축과 상기 선형으로 편광된 레이저 광의 상기 편광 평면 사이의 상기 미리 결정된 공간적인 관계는 상기 제1 회절 축이 상기 선형으로 편광된 레이저 광의 상기 편광 평면에 직교할 때 충족되는, 빔 위치 지정기.
- 빔 위치 지정기로서,
제1 음향 광학(AO) 편향기(AOD);
제2 AOD; 및
상기 제1 AOD와 상기 제2 AOD 사이에 삽입된 위상 지연기(phase retarder)를 포함하고,
상기 제1 AOD 및 상기 제2 AOD로 구성된 그룹으로부터 선택된 적어도 하나의 AOD는 게르마늄을 포함하는 재료로 형성된 AO 셀을 포함하는, 빔 위치 지정기. - 제18항에 있어서, 상기 위상 지연기는 적어도 하나의 위상-시프팅 리플렉터를 포함하는, 빔 위치 지정기.
- 제18항에 있어서, 상기 위상 지연기는 투과성 위상-시프팅 플레이트를 포함하는, 빔 위치 지정기.
- 제20항에 있어서, 상기 투과성 위상-시프팅 플레이트는 구조화된 다이아몬드 반파장판을 포함하는, 빔 위치 지정기.
- 빔 위치 지정기로서,
제1 음향 광학(AO) 편향기(AOD);
레이저 광의 빔이 상기 제1 AOD로부터 전파될 수 있는 빔 경로 내에 배열된 제2 AOD;
상기 제1 AOD와 상기 제2 AOD 사이의 상기 빔 경로 내에 배열된 위상 지연기; 및
상기 제1 AOD와 상기 제2 AOD 사이의 상기 빔 경로 내에 배열된 미러를 포함하고,
상기 제1 AOD, 제2 AOD, 위상 지연기 및 미러는 상기 레이저 광의 빔이 상기 제1 AOD 상에 입사되는 방향에 적어도 일반적으로 반대되는 방향으로 상기 레이저 광의 빔이 상기 제2 AOD로부터 전파될 수 있도록 배열되는, 빔 위치 지정기.
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| US201762562047P | 2017-09-22 | 2017-09-22 | |
| US62/562,047 | 2017-09-22 | ||
| PCT/US2018/052018 WO2019060590A1 (en) | 2017-09-22 | 2018-09-20 | ACOUSTO-OPTICAL SYSTEM WITH REFLECTOR WITH PHASE |
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