Dual/Harmonic Waveplates

03 May 2017

Waveplates are commonly used to create a phase shift in transmitted light. The

desired shift is achieved by varying the thickness of the crystalline quartz plate and its

alignment in the beam path.

LASER COMPONENTS offers quarter waveplates, producing a 90°phase shift,

and half waveplates producing a 180° phase shift. There are three main types of

waveplate, multiple order, low order and zero order. The fundamental difference

between these plates is the stability of the retardation tolerance. Generally waveplates

are optimised for use at one discreet wavelength. We are now however able to

provide dual/harmonic waveplates, designed so that a defined phase shift can be

reached for two wavelengths. The retardation can be specified differently for each of

the wavelengths. As an example, the wavelength 1064nm could be shifted by one

wave, while 532nm could be experience a half wave shift.

LASER COMPONENTS waveplates are supplied with a flattened edge for easy

alignment within the beam path.

More Information http://www.lasercomponents.com/uk/product/retardation-plates/