Deuterium (D2) lamps emit UV light; the wavelength range depends on the lamp’s glass material. A key characteristic of Hamamatsu’s D2 lamps is their excellent stability. They show very small output variations from lamp to lamp, and individual lamps have low fluctuation and drift values. Such stability is due to the ceramic electrode structure, which ensures lamp stability even when the ambient temperature fluctuates. D2 lamps also have a long service life and high brightness, and Hamamatsu continues to develop D2 lamps with even higher brightness. Hamamatsu makes the following types of D2 lamps
- L2D2 - long life
- S2D2 - stable and small, e.g. compact
- H2D2 - high brightness
- X2D2 - ultrahigh brightness
Deuterium lamps are widely used in UV-visible absorption spectroscopy, atomic absorption spectroscopy, HPLC, environmental analysis, capillary electrophoresis, film thickness measurement, and other applications.