# Photonic Crystal

Pyanodons item · internal name `photonic-crystal` · stack size 100 · first craftable in tier 7 (Production science pack, [tier 7](https://factorio.kalzumeus.com/tier/7.md))
HTML page: https://factorio.kalzumeus.com/item/photonic-crystal/

## Produced by (1 recipes)

### Photonic Crystal (`photonic-crystal`)

- 15 s · tier 7 · productivity modules allowed
- Ingredients: 1 × [Animal Reflectors](https://factorio.kalzumeus.com/item/animal-reflectors.md), 1 × [Inverse Opal](https://factorio.kalzumeus.com/item/inverse-opal.md), 100 × [Helium](https://factorio.kalzumeus.com/fluid/helium.md)
- Results: 1 × [Photonic Crystal](https://factorio.kalzumeus.com/item/photonic-crystal.md)
- Made in: Nanomaterial factory MK 01, Nanomaterial factory MK 02, Nanomaterial factory MK 03, Nanomaterial factory MK 04
- Unlocked by: [Photonics](https://factorio.kalzumeus.com/tech/photonics.md)

## Used in (4 recipes)

- Dielectric Mirror (`dieletric-mirror`, tier 7) → [Dielectric Mirror](https://factorio.kalzumeus.com/item/dieletric-mirror.md)
- Finite Difference Time Domain Photonic Structure (`fdtd`, tier 7) → [Finite Difference Time Domain Photonic Structure](https://factorio.kalzumeus.com/item/fdtd.md)
- Multi Quantum Dot Cell (`mqdc`, tier 9) → [Multi Quantum Dot Cell](https://factorio.kalzumeus.com/item/mqdc.md)
- Varphi Josephson junction (`var-josephson-junction`, tier 9) → [Varphi Josephson junction](https://factorio.kalzumeus.com/item/var-josephson-junction.md)