Deep ultraviolet transmitting glass as well as preparation method and application thereof

The invention relates to deep ultraviolet transmitting glass as well as a preparation method and application thereof. The deep ultraviolet transmitting glass comprises the following components in percentage by mass: 30-40 wt% of phosphorus pentoxide; 35 to 50 wt% of silicon dioxide; 5 to 10 weight percent of aluminum oxide; 10 to 15 weight percent of diboron trioxide; 1-3 wt% of tin oxide; 3-6 wt% of zinc oxide; 1 to 3 wt% of barium oxide; the sum of the contents of the components is 100 wt%. When the thickness of the deep ultraviolet transmitting glass is 1.0 mm, the transmittance of light with the wavelength of 200 nm is greater than 78%, the water-resistant stability is HGB1 level, and the refractive index is 1.480-1.490. The preparation method of the deep ultraviolet transmitting glass is simple, an impurity removal pretreatment step is avoided, and the preparation of the ultraviolet transmitting glass with high ultraviolet transmitting performance, chemical stability and matched refractive index is reali