How does a positive zone plate differ from a negative zone plate?
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Zone plate: A diffracting device used to experimentally demonstrate the diffraction effect.
Positive zone plate:
- Odd zones are kept transparent to the light
- Even zones are made opaque
Negative zone plate:
- Even zones are kept transparent to light
- Odd zones are made opaque
Answered by
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Zone plate: A diffracting device used to experimentally demonstrate the diffraction effect.
Positive zone plate:
Odd zones are kept transparent to the light
Even zones are made opaque
Negative zone plate:
Even zones are kept transparent to light
Odd zones are made opaque
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