Tydex 太赫兹分束镜 THz Beam Splitters
Tydex公司专业订制生产THz光学镜片,可以提供太赫兹专用离轴抛物镜、滤波片、偏振片、窗片、透镜、棱镜、波片、分束片、反射镜和菲涅尔透镜等,同时还提供太赫兹衰减器、太赫兹宽带相位变换器。 太赫兹分束镜THz Beam Splitters We offer THz beam splitters of 2 types:- single-pass beam splitter. It is used in optical schemes where radiation passes through beam splitter one time - multi-pass beam splitter for interferometer scheme where beam passes throughsplitter several times. The material of THz beam splitter is HRFZ-Si. These beam splitters provide transmittance/reflectance ratio about 54/46 (%) in the wide wavelength range without any coating.Reflection and transmission curves are shown below.Fig.1 HRFZ-Si transmission and reflection (sample thickness - 5 mm).1. Single-pass THz Beam Splitter The specification for the single-pass beam splitter is the same as for a HRFZ-Si window. In fact plano-plano HRFZ-Si window could be used as single-pass beam splitter.Commom specification: MaterialHRFZ-Si Type plano-plano Available sizes, mm to 150 Diameter or cross-cut tolerance,mm +0.0 /-0.1 Thickness tolerance, mm +/0.1 Clear apperture, % =90 Parallelism, arc. min 3 Surface quality (two-sided polishing), scr/dig 60/40 Surface accuracy, mm +/-0.01 deviation from ideal plane The finished parts of different dimensions are available from stock and supplied within a week.Please check the Optics stock.Custom sizes are manufactured upon request.For price quotation and delivery please fill in our Request form. 2. Multi-pass THz Beam Splitter The multi-pass beam splitter (for interferometers) as opposed to a single-pass beam splitter should be produced with a high accuracy.Commom specification: MaterialHRFZ-Si Type plano-plano Available sizes, mm to 150 Diameter or cross-cut tolerance,mm +0.0 /-0.1 Thickness tolerance, mm +/-0.01 Clear apperture, % =90 Parallelism, arc. sec 5 Surface quality (two-sided polishing), scr/dig 60/40 Surface accuracy, &lambda @633 nm 1 The following multi-pass THz beam splitters are available from stock: No. Diameter Thickness mm mm 1 40x30 3.5 2 50.8 3.5 Please check the Optics stock. Custom sizes are manufactured upon request.