Diffraction Gratings for Oriel MS125 Spectrograph

Compare	Model	Compatibility	rankScore	Type	Grooves per mm	Blaze Wavelength	Peak Efficiency	Primary Wavelength Region	Availability	Price	Brand
77410 MS125 Grating, Holographic, 1200 lines/mm, 240 nm blaze, 200-600 nm range 6 Weeks	77410 MS125 Grating, Holographic, 1200 lines/mm, 240 nm blaze, 200-600 nm range	UNIVERSAL	1.0	Holographic	1200	240 nm	63%	200 to 600 nm	6 Weeks		Oriel Instruments
77411 MS125 Grating, Ruled, 1200 lines/mm, 360 nm blaze, 200-1000 nm range $440 In Stock	77411 MS125 Grating, Ruled, 1200 lines/mm, 360 nm blaze, 200-1000 nm range	UNIVERSAL	1.0	Ruled	1200	360 nm	80%	200 to 1000 nm	In Stock	$440	Oriel Instruments
77412 MS125 Grating, Ruled, 1200 lines/mm, 750 nm blaze, 475-1000 nm range $440 6 Weeks	77412 MS125 Grating, Ruled, 1200 lines/mm, 750 nm blaze, 475-1000 nm range	UNIVERSAL	1.0	Ruled	1200	750 nm	78%	475 to 1000 nm	6 Weeks	$440	Oriel Instruments
77413 MS125 Grating, Ruled, 600 lines/mm, 225 nm blaze, 200-400 nm range 6 Weeks	77413 MS125 Grating, Ruled, 600 lines/mm, 225 nm blaze, 200-400 nm range	UNIVERSAL	1.0	Ruled	600	225 nm	60%	200 to 400 nm	6 Weeks		Oriel Instruments
77414 MS125 Grating, Ruled, 600 lines/mm, 370 nm blaze, 270-1000 nm range $440 In Stock	77414 MS125 Grating, Ruled, 600 lines/mm, 370 nm blaze, 270-1000 nm range	UNIVERSAL	1.0	Ruled	600	370 nm	75%	270 to 1000 nm	In Stock	$440	Oriel Instruments
77415 MS125 Grating, Ruled, 600 lines/mm, 700 nm blaze, 450-2000 nm range $510 6 Weeks	77415 MS125 Grating, Ruled, 600 lines/mm, 700 nm blaze, 450-2000 nm range	UNIVERSAL	1.0	Ruled	600	700 nm	78%	450 to 2000 nm	6 Weeks	$510	Oriel Instruments
77416 MS125 Grating, Ruled, 400 lines/mm, 325 nm blaze, 200-750 nm range $405 6 Weeks	77416 MS125 Grating, Ruled, 400 lines/mm, 325 nm blaze, 200-750 nm range	UNIVERSAL	1.0	Ruled	400	325 nm	65%	200 to 750 nm	6 Weeks	$405	Oriel Instruments
77417 MS125 Grating, Ruled, 400 lines/mm, 500 nm blaze, 275-1250 nm range $440 Show	77417 MS125 Grating, Ruled, 400 lines/mm, 500 nm blaze, 275-1250 nm range	UNIVERSAL	1.0	Ruled	400	500 nm	88%	275 to 1250 nm	Show	$440	Oriel Instruments
77419 MS125 Grating, Ruled, 2400 lines/mm, 275 nm blaze, 200-500 nm range $440 6 Weeks	77419 MS125 Grating, Ruled, 2400 lines/mm, 275 nm blaze, 200-500 nm range	UNIVERSAL	1.0	Ruled	2400	275 nm	69%	200 to 500 nm	6 Weeks	$440	Oriel Instruments
77420 MS125 Grating, Holographic, 2400 lines/mm, 400 nm blaze, 250-500 nm range 6 Weeks	77420 MS125 Grating, Holographic, 2400 lines/mm, 400 nm blaze, 250-500 nm range	UNIVERSAL	1.0	Holographic	2400	400 nm	73%	250 to 500 nm	6 Weeks		Oriel Instruments
77421 MS125 Grating, Holographic, 1800 lines/mm, 560 nm blaze, 320-670 nm range $820 In Stock	77421 MS125 Grating, Holographic, 1800 lines/mm, 560 nm blaze, 320-670 nm range	UNIVERSAL	1.0	Holographic	1800	560 nm	54%	320 to 670 nm	In Stock	$820	Oriel Instruments
77422 MS125 Grating, Ruled, 300 lines/mm, 270 nm blaze, 200-650 nm range $440 6 Weeks	77422 MS125 Grating, Ruled, 300 lines/mm, 270 nm blaze, 200-650 nm range	UNIVERSAL	1.0	Ruled	300	270 nm	70%	200 to 650 nm	6 Weeks	$440	Oriel Instruments
77455 MS125 Grating, Ruled, 600 lines/mm, 1350 nm blaze, 800-1900 nm range 6 Weeks	77455 MS125 Grating, Ruled, 600 lines/mm, 1350 nm blaze, 800-1900 nm range	UNIVERSAL	1.0	Ruled	600	1350 nm	88%	800 to 1900 nm	6 Weeks		Oriel Instruments
77457 MS125 Grating, Ruled, 400 lines/mm, 1600 nm blaze, 900-2900 nm range $405 6 Weeks	77457 MS125 Grating, Ruled, 400 lines/mm, 1600 nm blaze, 900-2900 nm range	UNIVERSAL	1.0	Ruled	400	1600 nm	82%	900 to 2900 nm	6 Weeks	$405	Oriel Instruments
77458 MS125 Grating, Ruled, 300 lines/mm, 1000 nm blaze, 575-2500 nm range $405 In Stock	77458 MS125 Grating, Ruled, 300 lines/mm, 1000 nm blaze, 575-2500 nm range	UNIVERSAL	1.0	Ruled	300	1000 nm	72%	575 to 2500 nm	In Stock	$405	Oriel Instruments
77459 MS125 Grating, Ruled, 246.16 lines/mm, 226 nm blaze, 190-450 nm range 6 Weeks	77459 MS125 Grating, Ruled, 246.16 lines/mm, 226 nm blaze, 190-450 nm range	UNIVERSAL	1.0	Ruled	246.16	226 nm	62%	190 to 450 nm	6 Weeks		Oriel Instruments
77463 MS125 Grating, Ruled, 1200 lines/mm, 975 nm blaze, 350-1000 nm range $405 6 Weeks	77463 MS125 Grating, Ruled, 1200 lines/mm, 975 nm blaze, 350-1000 nm range	UNIVERSAL	1.0	Ruled	1200	975 nm	73%	350 to 1000 nm	6 Weeks	$405	Oriel Instruments
77464 MS125 Grating, Ruled, 1200 lines/mm, 500 nm blaze, 300-1000 nm range $440 In Stock	77464 MS125 Grating, Ruled, 1200 lines/mm, 500 nm blaze, 300-1000 nm range	UNIVERSAL	1.0	Ruled	1200	500 nm	73%	300 to 1000 nm	In Stock	$440	Oriel Instruments
77465 MS125 Grating, Ruled, 600 lines/mm, 1000 nm blaze, 650-2000 nm range $405 In Stock	77465 MS125 Grating, Ruled, 600 lines/mm, 1000 nm blaze, 650-2000 nm range	UNIVERSAL	1.0	Ruled	600	1000 nm	83%	650 to 2000 nm	In Stock	$405	Oriel Instruments

Features

High Quality

Plane ruled and holographic gratings listed here are fabricated from float glass substrates with an aluminum coating. The Oriel monochromators and spectrographs feature diffraction gratings produced by Richardson Gratings. Both Oriel Instruments and Richardson Gratings are part of the Newport family of brands, and have a long history of working together to design instruments that are appropriate for a wide variety of applications.

Easy Installation

These 30 x 30 mm gratings come pre-aligned in their own frames, allowing them to precisely fit inside the instrument. The frame has a tab that allows the grating to be inserted or replaced inside the spectrograph without touching its surface. Each grating comes with a protective cover and is labeled with the model number, making interchangeability and storage simple. Note that the instrument will need to be recalibrated after replacing the grating.

Plane Ruled Gratings

For a plane blazed grating, the groove spacing and blaze angle determine the distribution of energy. The blaze direction for most gratings is specified for first order Littrow use. In Littrow use, light is diffracted from the grating back toward the source. Gratings used in the Littrow configuration have the advantage of maximum efficiency, or blaze, at specific wavelengths.

Broad Wavelength Coverage

Standard grating assemblies are available from UV, VIS and NIR. The primary wavelength region is where the grating efficiency is greater than or equal to 20%. System efficiency will also be affected by the reflectivity of the mirrors and the grating angle, at any wavelength. The MS125 gratings are available with operating ranges from 200 to 2600 nm.

Blazed Holographic Gratings

Holographic gratings normally have a sinusoidal groove shape, which is the result of recording interference fringe fields in photoresist material. Since the grooves are symmetrical, they do not have a preferred blaze direction and hence the gratings carry no blaze arrows. The range of useful diffraction efficiency is controlled by varying the modulation (the ratio of groove depth to groove spacing). The lower the modulation, the shorter the wavelength limit to which the grating can be used, but the peak efficiency may be lowered as well. We have found that three modulation levels are adequate for nearly all purposes.

High Efficiency

High-efficiency gratings are desirable for several reasons. A grating with high efficiency is more useful than one with lower efficiency in measuring weak transition lines in optical spectra. A grating with high efficiency may allow the reflectivity and transmissivity specifications for the other components in the spectrometer to be relaxed. Moreover, higher diffracted energy may imply lower instrumental stray light due to other diffracted orders, as the total energy flow for a given wavelength leaving the grating is conserved (being equal to the energy flow incident on it minus any scattering and absorption).

Special Orders Welcome

In addition to the gratings listed here, special order gratings may also be available for use in a wide variety of applications. Custom grating requests include gold coating for increased IR efficiency, AlMgF₂ coating for increased UV efficiency and many other requests. Gratings may be installed into a variety of mounts for use in specific monochromators or spectrographs. Contact Newport Sales for more information.

Diffraction Gratings for Oriel^® MS125 Spectrograph

Diffraction Gratings for Oriel^® MS125 Spectrograph

Overview