---
tags:
  - science/physics
  - electromagnetic-radiation
  - ultraviolet
  - sensors
created: 2026-05-16
breadcrumb: "Physics > Electromagnetic radiation > Ultraviolet"
---

# Ultraviolet

> **Mechanism:** High-energy photon detection

## Items

- **SiC photodiode** — Silicon carbide; wide-bandgap, solar-blind. Used for flame detection.
- **GaN photodiode** — Gallium nitride; deep-UV (200–365 nm) semiconductor detector.
- **UV PMT** — PMT with a solar-blind photocathode; single-photon UV counting.
- **Phototube** — Simple vacuum diode photocathode (no dynodes). Historical UV detector.

## Related

- [[visible-light]]
- [[x-ray-gamma]]