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Diameter φD
Thickness t
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Mica waveplates are zero-order (first-order) retardation plates (phase plates) which are designed at 550nm wavelength and effective from 400 − 700nm. A mica sheet is sandwiched between optical glass discs for protection and ease of use.

◦These products utilize birefringence of mica and give phase difference of λ/4 (π/2, 90°) or λ/2 (π, 180°) to the input beams. λ/4 plates convert linearly polarization to circularly and circularly polarization to linearly. λ/2 plates convert the direction of polarization in 90 degrees.
◦Usually linearly polarized beams are input to the waveplates in a leaning of 45 degrees against its optical axis.

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Technical Data
Documents/Downloads
Guide

▶Please contact our Sales Division for customized products. (Customized on size etc.)
▶Please refer to here for Wavelength Characteristic Data (Reference Data, EXCEL file format).

Attention

▶Mica waveplates cannot be used for high-power laser applications because of their relatively high absorption coefficient and occasional inhomogeneities.
▶Be sure to wear laser safety goggles when checking optical path and adjusting optical axis.
▶If you want to use the polarization measurement, please use the crystal waveplate.
W3032

Common Specifications
MaterialSheet of Mica , Glass plates (2 pieces)
Wavelength Range400 - 700nm
Transmitted wavefront distortion2λ (λ=550nm)
Incident angle
Wavelength Range580nm
Theoretical retardation1/4waveplate ; 145nm
1/2waveplate 290nm
Surface Quality (Scratch-Dig)40-20
Outline Drawing

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Schematic

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Typical Transmittance Data

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T: Transmission
Spec
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Part Number
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    JP Yen Stock Qty
WPM-10-2P
WPM-20-2P
WPM-25-2P
WPM-30-2P
WPM-40-2P
WPM-50-2P
WPM-10-4P
WPM-20-4P
WPM-25-4P
WPM-30-4P
WPM-40-4P
WPM-50-4P

λ/2

φ10mm

2.5mm

λ/2

φ20mm

2.5mm

λ/2

φ25mm

2.5mm

λ/2

φ30mm

2.5mm

λ/2

φ40mm

3.5mm

λ/2

φ50mm

3.5mm

λ/4

φ10mm

2.5mm

λ/4

φ20mm

2.5mm

λ/4

φ25mm

2.5mm

λ/4

φ30mm

2.5mm

λ/4

φ40mm

3.5mm

λ/4

φ50mm

3.5mm

RoHS  

¥30,000

LOW
RoHS  

¥36,000

CONTACT
US
RoHS  

¥39,500

CONTACT
US
RoHS  

¥42,000

LOW
RoHS  

¥54,000

CONTACT
US
RoHS  

¥59,800

CONTACT
US
RoHS  

¥30,000

IN STOCK
RoHS  

¥36,000

IN STOCK
RoHS  

¥39,500

CONTACT
US
RoHS  

¥42,000

CONTACT
US
RoHS  

¥54,000

CONTACT
US
RoHS  

¥59,800

CONTACT
US