For a germanium beam expander with n 4 f 2 m 5 the convergence angles are γ gal 1 7 mrad and γ kep 2 6 mrad.
Reflective beam expander.
The techspec canopus reflective beam expanders feature an all reflective monolithic design ideal for broadband or achromatic beam expansion and a wide variety of sources from the ultraviolet to the infrared including tunable ultraviolet and ultrafast lasers.
The all reflective design enables these beam expanders to be used with a variety of lasers including tunable ultraviolet and ultrafast sources while the innovative design ensures high precision with minimal wavefront distortion.
Reflective beam expanders do not suffer from chromatic aberration whereas the magnification and output beam collimation of transmissive beam expanders is wavelength dependent.
The all reflective design enables these beam expanders to be used with a variety of lasers including tunable ultraviolet and ultrafast sources while the innovative design ensures high precision with minimal wavefront distortion.
The diamond turned techspec canopus reflective beam expanders are ideal for broadband or achromatic beam expansion and a wide range of light sources.
Thus reflective beam expanders can be used with collimated polychromatic light without the need of any fine focus adjustment.
Reflective beam expanders are modified cassegrain and gregorian mirror systems.
The fact that a negative lens has over corrected spherical aberration as mentioned above permits us to bend the negative entrance element of a galilean beam expander in such a way that it will compensate.
The fixed magnification sliding lens beam expanders are offered with optics that have either narrowband or wideband ar coatings.
The be04r and be06r beam expanders also feature through holes that accept 1 4 20 and m6 cap screws which can be used to mount the beam expander to the table or elevate the beam expander.
Canopus reflective beam expanders.
They have minimal wavefront distortion and their achromatic all reflective design enables them to be used with tunable ultraviolet and ultrafast lasers.
Available in standard 2 5x 5x 10x fixed magnification or customer specified fixed or variable magnification configurations osl smaller diameter reflective beam expanders are designed to be easy to use and to.
To secure the reflective beam expanders to an optical table use two cl2 cl3 or cl6 table clamps to hold the lip of the housing against the table s surface.
Reflective beam expanders are much less common than transmissive beam expanders but have several advantages that make them the right choice for certain applications.
Canopus reflective beam expanders.
