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- Laser Windows
- There are specific windows that allow particular wavelengths of light pass while helping hold vacuum
- Fairly robust, don't scratch coating
- Kapton Windows
- Kapton has a lot of cool properties
- High melting point
- Low volatility
- Good for no outgassing in vacuum
- Transparent to X-rays
- The thinner the better
- Prone to rupture (see below)
- The one below
- Kapton has a lot of cool properties
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