CCD spectrometer holographic concave grating

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$1.00 - $99.00 / Piece | 1 Piece/Pieces (Min. Order)
Lead Time:
Quantity(Pieces) 1 - 50 51 - 100 101 - 500 >500
Est. Time(days) 7 10 25 Negotiable
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Overview
Quick Details
Place of Origin:
Jilin, China
Brand Name:
REALPOO
Product Name:
Holographic concave grating
Diameter Tolerance:
+/-0.1mm
Center Thickness Tolerance:
+/-0.1mm
Application:
Spectrometer
Supply Ability
Supply Ability:
10000 Piece/Pieces per Month
Packaging & Delivery
Packaging Details
Protective Packing
Port
FOB changchun
Lead Time :
Quantity(Pieces) 1 - 50 51 - 100 101 - 500 >500
Est. Time(days) 7 10 25 To be negotiated
Product Description

What is holographic grating?

Holographic gratings are formed by an interference fringe field of two laser beams whose standing wave pattern is exposed to a polished substrate coated with photoresist. Processing of the exposed medium results in a pattern of straight lines with a sinusoidal cross section. Holographic gratings produce less stray light than ruled gratings. They can also be produced with up to 3600 grooves per millimeter for greater theoretical resolving power. Due to their sinusoidal cross section, holographic gratings cannot be easily blazed and their efficiency is usually considerably less than a comparable ruled grating. There are, however, special exceptions which should be noted. When groove spacing to wavelength ratio is near one, a holographic grating has virtually the same efficiency as the ruled version. Also, a holographic grating with 1800 grooves per millimeter has the same efficiency at 500nm as a blazed ruled grating. Holographic master gratings are replicated by a process identical to that used for ruled gratings.
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