CN102115873A - 一种超低损耗腔镜的镀膜工艺 - Google Patents

一种超低损耗腔镜的镀膜工艺 Download PDF

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Publication number
CN102115873A
CN102115873A CN2010106012076A CN201010601207A CN102115873A CN 102115873 A CN102115873 A CN 102115873A CN 2010106012076 A CN2010106012076 A CN 2010106012076A CN 201010601207 A CN201010601207 A CN 201010601207A CN 102115873 A CN102115873 A CN 102115873A
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China
Prior art keywords
loss
coating
cavity mirror
ion beam
ultra
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CN2010106012076A
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English (en)
Inventor
吴先云
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Fujian Castech Crystals Inc
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Fujian Castech Crystals Inc
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Priority to CN2010106012076A priority Critical patent/CN102115873A/zh
Publication of CN102115873A publication Critical patent/CN102115873A/zh
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Abstract

一种超低损耗腔镜的镀膜工艺。传统的离子束辅助沉积镀膜方式镀制的腔镜,损耗较大,其损耗一般在500ppm以上,本发明采用双离子束溅射方式,镀前使用超声波清洗,离子束预清洗工艺,镀后进行适当的退火处理,得到非常致密、粗糙度极低,低温漂,低透射损耗和低散射损耗的薄膜,从而提高激光腔镜的反射率,反射率小于20ppm。

Description

一种超低损耗腔镜的镀膜工艺
【技术领域】
本发明涉及光学镀膜领域,尤其是一种超低损耗腔镜的镀膜工艺。
【技术背景】
离子束辅助沉积镀膜简称为IAD方式镀膜它是在热蒸发镀膜的同时,用离子束轰击,用这种方法比单纯热蒸发镀制的光学薄膜效果好。热蒸发镀膜技术的优点是:设备简单,很多介质材料都可用热蒸发技术镀膜。但所镀的薄膜有结构松驰、性能不稳定、寿命短、牢固度差等缺点。其原因从微观结构分析,是因热蒸发镀制的膜层呈柱状结构,在柱状间隙中,潮气的吸附和渗透造成上述缺陷。为了克服离子束辅助沉积方式的缺点,本发明采用使用双离子束溅射方式,镀前使用超声波清洗,离子束预清洗工艺,得到的薄膜非常致密、粗糙度极低,低温漂,低透射损耗和低散射损耗的薄膜;适当的退火方式后处理方式,能大幅度降低吸收损耗,从而得到超低损耗的薄膜(总损耗(含透射损耗、散射损耗、吸收损耗)<20ppm),从而提高激光腔镜的反射率。
【发明内容】
本发明使用DIBS双离子束溅射方式,镀前使用超声波清洗,离子束预清洗,得到的薄膜非常致密、粗糙度极低,低温漂,低透射损耗和低散射损耗的薄膜;镀后采用适当的退火方式后处理。
【具体实施方式】
实施例一:
采用双离子束溅射方式,镀膜前使用超声波清洗,离子束预清洗,镀膜后采用退火处理,得到超低损耗的薄膜,总损耗(含透射损耗、散射损耗、吸收损耗)<20ppm。

Claims (3)

1.一种超低损耗腔镜的镀膜工艺,其特征在于采用双离子束溅射方式,镀制前使用超声波清洗。
2.根据权利要求1所述的一种超低损耗腔镜的镀膜工艺,其特征在于镀前使用离子束预清洗。
3.根据权利要求1所述的一种超低损耗腔镜的镀膜工艺,其特征在于镀制后进行退火处理。 
CN2010106012076A 2010-12-23 2010-12-23 一种超低损耗腔镜的镀膜工艺 Withdrawn CN102115873A (zh)

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CN102115873A true CN102115873A (zh) 2011-07-06

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1471137A (zh) * 2003-06-18 2004-01-28 �Ϻ���ͨ��ѧ 高介电系数栅电介质材料氮铝酸铪薄膜及其制备方法
CN101470266A (zh) * 2007-12-28 2009-07-01 中国航天科技集团公司第五研究院第五一〇研究所 一种超宽光谱分色镜的制备方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1471137A (zh) * 2003-06-18 2004-01-28 �Ϻ���ͨ��ѧ 高介电系数栅电介质材料氮铝酸铪薄膜及其制备方法
CN101470266A (zh) * 2007-12-28 2009-07-01 中国航天科技集团公司第五研究院第五一〇研究所 一种超宽光谱分色镜的制备方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
张大伟等: "离子束清洗在激光薄膜中的应用", 《光学技术》 *
邓婷等: "高反膜镀制工艺研究的新进展", 《真空电子技术》 *

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Application publication date: 20110706