Related Experiment Video
Updated: Jul 8, 2026
12:08
Fabrication of High Contrast Gratings for the Spectrum Splitting Dispersive Element in a Concentrated Photovoltaic System
Published on: July 18, 2015
High-efficiency fused-silica transmission gratings
Optics Letters
|February 1, 1997
Summary
High-efficiency transmission gratings made from fused silica achieve 94% diffraction efficiency for high-power ultraviolet laser systems. These durable gratings exceed a laser damage threshold of 13 J/cm² for short pulses.
Area of Science:
- Optics and photonics
- Materials science
- Laser technology
Background:
- High-power laser systems require robust optical components.
- Ultraviolet (UV) lasers present unique challenges for material durability and efficiency.
Purpose of the Study:
- To design, fabricate, and evaluate high-efficiency transmission gratings for high-power UV laser applications.
- To assess the performance and laser-induced damage threshold of these novel gratings.
Main Methods:
- Bulk fused silica was used for grating fabrication.
- Transmission gratings were designed and manufactured.
- Diffraction efficiency and laser damage threshold were experimentally measured.
Main Results:
- The fabricated gratings achieved a high diffraction efficiency of 94% in the m=-1 order.
- The gratings demonstrated a laser damage threshold exceeding 13 J/cm².
- Experimental results showed good agreement with theoretical model calculations.
Conclusions:
- High-efficiency transmission gratings fabricated in bulk fused silica are suitable for high-power UV laser systems.
- The gratings offer excellent performance and durability under demanding laser conditions.
