Development of high dispersion grisms and immersion gratings for spectrographs of Subaru Telescope

被引：20

作者：

Ebizuka, N ^{[1
]}

Iye, M ^{[1
]}

Sasaki, T ^{[1
]}

Wakaki, M ^{[1
]}

机构：

[1] Commun Res Lab, Space Commun Div, Tokyo 1818795, Japan

来源：

OPTICAL ASTRONOMICAL INSTRUMENTATION, PTS 1 AND 2 | 1998年 / 3355卷

关键词：

astronomical spectrograph; grism; immersion grating; ion-etching; optically anisotropic crystal; transmission grating;

D O I：

10.1117/12.316818

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We show that a crystalline lithium niobate (LiNbO3 : LN) grism and a hybrid grism made of a LN transmission grating and a zinc sulfide (ZnS) prism, in spite of their birefringent properties, can be used as new and powerful dispersing elements with high refractive indices to realize high spectral resolution for optical to near infrared astronomical spectrograph with transmission optics. We also show new fabricating methods for grisms and immersion gratings with high index material and deep grooves.

引用

页码：409 / 416

页数：4