How the aging time of alcohol solutions of tetraethoxy titanium used for depositing thin-film coatings affects the spectral characteristics of the latter

摘要

It is established that the reflectance of single-layer interference beamsplitter coatings is maximized when freshly prepared alcohol solutions of tetraethoxy titanium with an aging (holding) time of about 3 h are used for depositing them. The use of such coatings to fabricate multilayer coatings makes it possible to achieve high reflectance by depositing a smaller number of layers. Based on this fact, a method was developed for fabricating interference coatings.