Quarter Waveplate

Quarter-Wave Plate (λ/4 Plate):

  • A quarter-wave plate introduces a phase shift of 90 degrees (or one-quarter wavelength) between the fast and slow axes.
  • Function: It converts linearly polarized light into circularly polarized light or vice versa, depending on how it's oriented.
    • Linearly polarized light becomes circularly polarized when passing through a quarter-wave plate at 45° to its fast axis.
    • Circularly polarized light becomes linearly polarized if passed through in reverse.
D12.7mm, 1550nm, 1/4λ, Low-Order, Waveplate
$75.00
D12.7mm, 1550nm, 1/4λ, Low-Order, Waveplate
$75.00
D12.7mm, 1064nm, 1/4λ, Low-Order, Waveplate
$75.00
D12.7mm, 1064nm, 1/4λ, Low-Order, Waveplate
$75.00
D12.7mm, 1064nm, 1/4λ, Low-Order, Waveplate
$75.00
D12.7mm, 1064nm, 1/4λ, Low-Order, Waveplate
$75.00
D12.7mm, 1030nm, 1/4λ, Low-Order, Waveplate
$75.00
D12.7×(0.5)mm, 1116nm, 1/4λ, Low-Order, Waveplate
$75.00
D10mm, 1064nm, 1/4λ, Low-Order, Waveplate
$65.00
4×4×0.5783mm, 1064nm, 1/4λ, Low-Order, Waveplate
$65.00

  • Optical Isolation

    Quarter-wave plates are used in optical isolators, which prevent unwanted reflections from returning to sensitive optical components (e.g., lasers). By converting linearly polarized light into circularly polarized light and then back into linearly polarized light after reflection, the isolator ensures that reflected light is blocked by a polarizer

  • Polarization Control in Imaging and Communication

    In microscopy and medical imaging, quarter-wave plates enhance contrast by manipulating the polarization state of light passing through samples

    In optical communication, they help reduce signal interference by controlling the polarization state of transmitted signals

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