Abstract

HfO2/SiO2 dichroic mirrors, having high reflectance at 1064 nm and high transmittance at 532 nm, play an important role in high-power laser systems. However, the half-wave hole effect, caused mainly by the refractive index inhomogeneity of hafnia, affects the spectra and application of these mirrors. Two approaches to eliminate the half-wave hole effect have been proposed. Both approaches attempt to shift the location of the half-wave hole in comparison with the original wavelength. One approach broadens the reflectance band of the first harmonic wavelength and simultaneously adjusts the central reflectance band to a longer wavelength, whereas the other approach combines the two stacks to adjust the location of the half-wave hole far away from the wavelength of interest. Two kinds of dichroic mirrors have been successfully fabricated; moreover, it was found that the method of a two-stack combination, 0.9(HL)8 and 1.1(HL)8, provides designs that can be fabricated more easily and with better quality spectral characteristics.

© 2013 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Comparative study of Laser induce damage of HfO2/SiO2 and TiO2/SiO2 mirrors at 1064 nm

Hongfei Jiao, Tao Ding, and Qian Zhang
Opt. Express 19(5) 4059-4066 (2011)

Annealing effects on microstructure and laser-induced damage threshold of HfO2/SiO2 multilayer mirrors

Shuvendu Jena, Raj Bahadur Tokas, K. Divakar Rao, Sudhakar Thakur, and Naba Kishore Sahoo
Appl. Opt. 55(22) 6108-6114 (2016)

Femtosecond laser-induced damage of HfO2/SiO2 mirror with different stack structure

Shunli Chen, Yuan’an Zhao, Zhenkun Yu, Zhou Fang, Dawei Li, Hongbo He, and Jianda Shao
Appl. Opt. 51(25) 6188-6195 (2012)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription