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Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
Published on: December 27, 2012
Composite thin-foil bandpass filter for EUV astronomy: titanium-antimony-titanium
P Jelinsky1, C Martin, R Kimble
1University of California, Space Sciences Laboratory, Berkeley, California 94720, USA.
Applied Optics
|April 15, 1983
Summary
Researchers developed a stable, rugged composite filter using antimony and titanium foils. This novel extreme ultraviolet (EUV) filter shows promise for EUV astronomy applications.
Area of Science:
- Materials Science
- Optics
- Astronomy
Background:
- Extreme ultraviolet (EUV) radiation requires specialized filters for observation.
- Metallic foils offer potential for EUV filtering applications.
Purpose of the Study:
- To develop a novel EUV filter with a specific bandpass (350-550 Å).
- To investigate the properties of antimony and titanium metallic foils for EUV filtering.
- To assess the stability and mechanical ruggedness of a composite filter design.
Main Methods:
- Fabrication of composite filters with antimony sandwiched between titanium foils.
- Measurement of transmission spectra for composite and pure titanium foils across a broad EUV range (130-1216 Å).
- Derivation of absorption coefficients for constituent materials and analysis of oxide effects.
Main Results:
- A composite filter of antimony and titanium was successfully developed.
- Transmission spectra were characterized, revealing the filter's bandpass properties.
- The composite filter demonstrated mechanical stability and ruggedness.
- The influence of titanium oxide on transmission was quantified.
Conclusions:
- The developed antimony-titanium composite filter is a viable option for EUV applications.
- The filter exhibits promising characteristics for use in EUV astronomy.
- Further research can explore optimization for specific wavelength ranges and environments.
