X-ray diffraction gratings for synchrotron radiation spectroscopy: a new fabrication method

Area of Science:

• Materials Science
• Optics
• Spectroscopy

Background:

• Synchrotron radiation spectroscopy requires high-quality optical components.
• Traditional grating fabrication methods can be complex and costly.

Purpose of the Study:

• To develop and evaluate a new fabrication technique for silicon dioxide lamellar gratings.
• To assess the suitability of these gratings for synchrotron radiation spectroscopy.
• To investigate methods for improving grating quality, such as edge roughness and land-to-groove ratio.

Main Methods:

• Fabrication of silicon dioxide lamellar gratings using a combination of holographic exposure and reactive ion-beam etching.
• Experimental characterization of the fabricated gratings.
• Investigation of techniques to optimize edge roughness and land-to-groove width ratio.

Main Results:

• The fabricated silicon dioxide lamellar gratings demonstrate suitability and utility for synchrotron radiation spectroscopy.
• The developed fabrication technique is simpler compared to traditional ruling techniques.
• Improvements in edge roughness and control over the land-to-groove width ratio were investigated.

Conclusions:

• The novel fabrication method offers a promising and relatively simple approach for producing gratings for synchrotron radiation spectroscopy.
• These bakable original gratings are well-suited for demanding synchrotron radiation spectroscopy applications.