Borofloat 33 is a high quality borosilicate glass that offers low thermal expansion and high thermal shock resistance. Its material properties and moderate cost make Borofloat 33 an ideal substrate for general purpose applications. For more information, please see our Optical Materials technical note.

Our BD.1 visible broadband dielectric coating reflects all visible laser lines in the range of 488 to 694 nm with greater than 99% efficiency for s-polarization and 98% for p-polarization at 0 - 45° angle of incidence. 

Our BD.2 coating offers high reflectance for near infrared diode laser applications. Reflectivity is greater than 99% for s-polarization and 97% for p-polarization from 700 – 950 nm at 0 – 45° angle of incidence. Greater than 80% average reflectivity at 632.8 nm is also provided to permit easy alignment using a HeNe laser.

The New Focus 51X0 broadband dielectric coating reflects wavelengths between 300 to 320 nm with greater than 97% efficiency, 320 to 420 nm with greater than 98% efficiency, and 420-530 nm with greater than 99% efficiency for s-polarization and p-polarization at 0 - 45° angle of incidence. 

The New Focus 51X1 broadband dielectric coating reflects all wavelengths in the range of 450 to 700 nm with greater than 99% efficiency for s-polarization and p-polarization at 0 - 45° angle of incidence. 

The New Focus 51X2 broadband dielectric coating reflects all wavelengths in the range of 700 to 900 nm with greater than 99% efficiency for s-polarization and p-polarization at 0 - 45° angle of incidence. 

A convenient pack of ten mirrors is also offered at a discount for customers outfitting new laboratories or new research applications.