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Waveplates Include 1 / 2lamda , 1 / 4lambda , Cemented Achromatic, Zero-order
Posted at: Offers to Sell and Export
Posted on: Sun 22 Mar, 2009 1:11 am
Waveplates (retardation plates or phase shifters) are made from materials which exhibit birefringence. The velocities of the extraordinary and ordinary rays through the birefringent materials vary inversely with their refractive indices. The difference in velocities gives rise to a phase difference when the two beams recombine. In the case of an incident linearly polarized beam this is given by a=2pi*d(ne-no)/l (a-phase difference; d-thickness of waveplate; ne, no-refractive indices of extraordinary and ordinary rays respectively; l-wavelength). At any specific wavelength the phase difference is governed by the thickness of the retarder.
The thickness of a half waveplate is such that the phase difference is l/2-wavelength (true-zero order) or some multiple of l/2-wavelength (multiple order
The thickness of the quarter waveplate is such that the phase difference is l/4 wavelength (true-zero order) or some multiple of l/4 wavelength (multiple order).
Material: Optical grade Crystal Quartz
Dimension Tolerance: +0.0, -0.2mm
Wavefront Distortion: l /8@633nm
Retardation Tolerance: l/100
Surface Quality: 20/10 Scratch and Dig
AR Coating: R<0.2% at center wavelength
Standard wavelength: l @1064nm + l /2@532nm
l /2@1064nm + l @532nm
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Company Contact:
Contact Name: Gary Lee
Company Name: Lasertec Inc
Email:  or 
Skype: Lasertec4
Tel: 86-591-22732075
Fax: 86-591-82652571
Street Address: 103-3 Hutang Village,
Gushan, Jinan, Fuzhou, Fujian, PR China
Website: http://www.lcoptical.com
Member name: lasertec
Country:  China
Member Since: 28 February 2009
Total Leads: 21
Business focus: Laser Crystals, Optical Components, Prism, Lense, Filter, Sapphire, Widows, Ndyvo4, Lbo, Ktp, Ndyag
  
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