Focusing elliptic Silicon substrate Lens FSL-D20-f50 20 mm diameter, 50 mm focal length
Elliptic focusing silicon lens
material
undoped HRFZ-silicon
specific resistanceρ
>10 kΩ·cm
refractive index n
3.4
diameter
20 mm
focal length
50 mm
height h
14 mm
distance d
14.6 mm
flat surface
polished
elliptic surface
polished
PCA chip thickness t
0.6 mm
Terahertz beam
focal length f
50 mm
collection angle α
52.7°
convergence angle ß
10°
Airy disc diameter
at 300 GHz
3.6 mm
at 1 THz
1.1 mm
at 3 THz
0.36 mm
描述 [描述] Focusing elliptic silicon lens with 20 mm diameter and 50 mm focal length.