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Large-aperture coatings for fusion-class laser systems.

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|April 1, 2020

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Advanced optical coatings are crucial for large-scale fusion laser systems, enabling high-intensity performance and precise wavefront control. Decades of progress support the construction and maintenance of major laser facilities.

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Area of Science:

Materials Science
Optics
Laser Technology

Background:

Fusion-class laser systems require specialized optical coatings.
Challenges include large substrate sizes and high laser intensities.
Precise wavefront control is essential for system focusing.

Purpose of the Study:

To summarize advancements in optical coatings for fusion lasers.
To highlight efforts supporting major laser system construction.
To review coating technologies for system maintenance.

Main Methods:

Review of historical coating development.
Analysis of coating requirements for high-power lasers.
Case studies of major laser facilities (NIF, LMJ, OMEGA EP, OMEGA).

Main Results:

Significant progress in optical coating technology over 30 years.
Development of coatings meeting stringent laser system demands.
Enabling capabilities for constructing and maintaining large fusion laser systems.

Conclusions:

Optical coating advancements are vital for fusion energy research.
Continued innovation is necessary for next-generation laser systems.
This work provides a historical overview of critical coating developments.