A tunable optical filter

被引：117

作者：

Philip, J ^{[1
]}

Jaykumar, T ^{[1
]}

Kalyanasundaram, P ^{[1
]}

Rai, B ^{[1
]}

机构：

[1] Indira Gandhi Ctr Atom Res, DPEND, Kalpakkam 603102, Tamil Nadu, India

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2003年 / 14卷 / 08期

关键词：

optical filters; tunable optical filters; interference filters; ferrofluid based devices; display devices;

D O I：

10.1088/0957-0233/14/8/314

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present the details of a new tunable optical filter, suitable for selecting different bands of wavelength in the UV, visible and IR regions. The filter comprises a ferrofluid-based emulsion cell (emulsion sandwiched between two transparent sheets), a miniature solenoid and a variable direct current source for changing the magnetic field inside the solenoid. By varying the magnetic field, one can tune the filter and select the desired wavelength. We discuss the working principle of the new tunable optical filter with a few examples.

引用

页码：1289 / 1294

页数：6

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