Our ultrabroadband reflective vis-nIR phase retarder is the perfect quarter waveplate to convert linearly polarized light into circularly polarized light with minimal dispersion.
Covering a broad spectral range from 650 to 1400 nm it supports more than an optical octave of bandwidth with a dispersion of less than 3 fs2 and up to 90% reflectivity, making it ideal for laser systems using ultrashort pulses, especially Ytterbium-based platforms. More wavelengths are available upon request.
Its rotation is remote controllable and can be used with beam diameters up to 6 mm, preserving the beam direction.