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Dual Wavelengths Waveplates

issue date:2016-3-31 15:35:44 visit frequency:1462

Dual Wavelengths Waveplates

Dual wavelength is used in many microplate-based applications to reduce optical interference caused by scratches, fingerprints or other matter that absorb light equally at both wavelengths. For example, many investigators prefer to read microplate-based assays with lids or membrane seals in place to reduce biohazards, as well as evaporation. As a result of using lids, condensation may collect on the lid during the assay process. To illustrate the benefits of dual wavelength in these types of applications, XF performed experiments showing what effect on results a plate lid, with or without condensation, can have when readings are taken at single vs. dual wavelength. The experiments demonstrated that when the plate is read at two wavelengths and the difference in optical densities is computed, this technique adequately compensated for these effects.


Material

Crystal Quartz

Parallelism

<1 arc second

Diameter Tolerance

+0.0/-0.1

Surface Quality

20/10 (Scratch/Dig)

Retardation Tolerance

λ/300

Wavefront Distortion

λ/8@632.8nm

Clear Aperture

>90%

AR Coating

<0.2% Wavelength

Damage Threshold

500MW/cm2 in 5 ns pulse

Waveength Range

240-2100nm


Diameter(mm)

Phase Retardation

Part Number

10.0

λ@1064nm +λ/2@532nm

WPDW101

12.7

λ@1064nm +λ/2@532nm

WPDW 111

15.0

λ@1064nm +λ/2@532nm

WPDW 121

20.0

λ@1064nm +λ/2@532nm

WPDW 131

25.4

λ@1064nm +λ/2@532nm

WPDW 141

30.0

λ@1064nm +λ/2@532nm

WPDW 151