Scientists in China developed a method for preparing porous SiO2 materials by combining electron beam co-evaporation with selective chemical etching. Based on this method, all-silica ultraviolet laser ...
Triplet achromatic lenses offer excellent performance in chromatic and aberration correction and are suitable for high precision optical systems, but have higher cost, weight and assembly complexity.
Results that may be inaccessible to you are currently showing.
Hide inaccessible results