Figure 1 (IMAGE)

Tohoku University

Figure 1

Caption

Schematic concept of the developed tunable filter. (a) Cross-sectional view of the filter; (b) relationship between period and refractive index; (c) frequency shift due to the change of refractive index. 

Credit

Ying Huang et al.

Usage Restrictions

Reporters may use freely these materials in news coverage with appropriate credit information.

License

Original content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.