Chelmsford, MA 01824-4107


About McPherson



7-A Stuart Rd
Chelmsford, MA 01824-4107
United States

More Info on McPherson

Monochromators, spectrometers, spectrographs, and spectroscopy systems for the ultraviolet, Visible, Infrared, vacuum and x-ray region. High resolution instruments and systems measuring Raman, luminescence, fluorescence, reflectance, transmittance and more.


High Resolution Spectrometer

Long Spectrometers for Better Spectral Resolution

Long focal length spectrometers from McPherson provide an optimized blend of light throughput and spectral resolution. Instruments range from 0.67 to 4 meter focal length and ...
Vuvas Spectrophotometer

Vacuum UV and Deep Ultraviolet Spectrophotometer

Do you test transmittance and reflectance in the deep UV or Vacuum Ultraviolet? Do you provide UV optics, coatings, photo resist materials, and substrates? The VUVAS 1000 directly...
251mx Spectrograph

Flat-field Spectrograph for deep UV to soft x-ray

McPherson Model 251MX aberration corrected flat field spectrometer uses spherical substrate gratings with aspheric wave-front recording for an aberration corrected, high resolution...

Press Releases

Mc Pherson 234302 Monochromator

Easy Monochromator for Ultraviolet Light

McPherson State of the Art Monochromator for UV SpectroscopyMcPherson is excited to launch the improved compact Model 234/302 monochromator. A monochromator separates light into...
251mx Entrance Slit N Source View

New Flat-field Diffraction Grating

New flat-field diffraction grating improves efficiency and range of the McPherson Model 251MX in the deep UV and vacuum ultraviolet. The new aberration corrected grating extends...


Mc Pherson

McPherson aberration-corrected flat-field spectrometer uses spherical substrate gratings

The Model 251MX aberration-corrected flat-field spectrometer uses spherical substrate gratings with aspheric wavefront recording.
Mc Pherson

McPherson IR spectrometer features application-specific diffraction gratings

Dispersive infrared (IR) spectrometers for the longwave-infrared wavelength range come with application-specific diffraction gratings for measuring and tuning specific wavelengths...
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Imaging spectrometer for VUV from McPherson measures vertical spatial profile

A imaging spectrometer for the vacuum ultraviolet measures vertical spatial profile, in addition to dispersed wavelengths.
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Lasers & Sources

UV lamp from McPherson is windowless

The Model 629 windowless, hollow cathode UV lamp produces excited atoms and ions that emit electromagnetic radiation at wavelengths characteristic of the gas flowing through the...
(Image courtesy of Erik Schoeffel)
Longtime head of McPherson Instruments, D. M. Schoeffel, dies at 86
Test & Measurement

Longtime head of McPherson Instruments, D. M. Schoeffel, dies at 86

Dietmar Maximilian Schoeffel acquired McPherson Instruments in 1986, built up precision analytical tool product line.
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Test & Measurement

Vacuum UV spectral test system from McPherson operates from 30 to 160 nm

A VUV-STS vacuum ultraviolet spectral test system measures reflectance as a function of angle of incidence.
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Test & Measurement

McPherson monochromator is available with off-axis parabolic optics

The Model 207A is a 670 mm focal length, optically fast f/4.7 monochromator that is now available with off-axis parabolic optics.
Vuv Silicon Diode (002)
Test & Measurement

In-vacuum amplifier from McPherson has use with vacuum-UV silicon photodiodes

The 671MX high vacuum-compatible, current-to-voltage converting amplifier is developed for use with vacuum-UV silicon photodiodes.
(Image: McPherson)
McPherson unveils high-energy XUV spectrometer that measures from 300 to 1 nm wavelengths.

McPherson unveils high-energy XUV spectrometer that measures from 300 to 1 nm wavelengths

Instrument is aimed at attosecond, compact EUV, and high-harmonic laser generation researchers.
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SXR spectrometer from McPherson includes adjustable detector mount

The Model 251MX soft x-ray spectrometer includes a new gold-coated diffraction for work from 20 to 80 nm, for measurements of soft x-ray, extreme ultraviolet, and vacuum ultraviolet...

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Additional content from McPherson

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McPherson DUV spectrophotometer performs absorbance measurements from 120 to 215 nm

The VUVAS spectrophotometer uses ultraviolet-sensitive CCD detectors for fast data acquisition.
1503prod Mcpherson

Spectrophotometer from McPherson measures reflectance from 120 nm to 2.2 micron

The vacuum UV universal spectrophotometer is an optical test system optimized for emitting samples like phosphors or photo- and electro-luminescent crystals.
Spectrometer model 209 from McPherson

Spectrometer from McPherson can make wavelength steps as small as 0.11 pm

The 1.3 m focal length model 209 spectrometer with micro-step drive can make wavelength steps as small as 0.11 pm.
FIGURE 1. The shape of Horiba's iHR550 imaging spectrometer is dictated by its requirements.

SPECTRAL IMAGING: Imaging spectrometers look at life in two ways

Spectral imaging is finding more and more applications in life sciences, from noninvasive disease diagnosis to food processing. Various imaging spectrometers make those applications...
FIGURE 1. The McPherson 209 1.33 m scanning monochromator is shown equipped for high-resolution vacuum-ultraviolet (VUV) transmission measurements; attached are a Hamamatsu PMT and deuterium lamp, Keithley 6485 picoammeter, McPherson 835 pumping interface, McPherson 792 and 789A-3 motor controllers, and McPherson 7640 high-voltage power supply.

Spectroscopy: Ground-based VUV spectrometer supports satellite studies of planetary atmospheres

A vacuum-ultraviolet spectrometer supports development of improved absorption cell photometers to measure gas isotope ratios that hold clues to the history and future of planetary...
1402prod Mcpherson

McPherson introduces tunable source spectral test station

The 310STS spectral test station has efficient grazing incidence optics with light sources that work between 1 and 120 nm.
(Courtesy of Headwall Photonics)
FIGURE 1. A hyperspectral image from Headwall Photonics' Micro-Hyperspec sensor was taken from a fixed-wing aircraft.

Photonics Products: Spectrometers: Imaging spectrometers examine the world around us

Imaging spectrometers capture enormous quantities of data in a 2D form that is relevant to areas from science and security to industry and art.
A ray-trace layout (a) shows the toroidal mirrors and plane grating used in an off-axis spectrometer; modeled results (b) show the remarkable efficiency of EUV diffraction gratings in the off-plane geometry.

SPECTROMETERS: Off-plane EUV spectrograph aids plasma research

McPherson has developed a commercial conical-diffraction, off-plane x-ray Czerny-Turner (OP-XCT) spectrograph that can be used, among other applications, for plasma diagnostics...
Content Dam Lfw Online Articles 2013 10 10 Lfw 10 Mcpherson
Detectors & Imaging

McPherson UV spectrometer measures vacuum ultraviolet spectral emission

The Model 234/302 compact 200 mm focal length device has adjustable slits and operates at f/4.5.
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Halogen light source from McPherson features a mirror-condenser

The Model 610 650 W tungsten halogen light source for spectrometers delivers continuum output in the 350 to 2500 nm range.
McPherson VUVAS scientific-grade spectrophotometer

Spectrophotometer from McPherson for optical component analysis

The VUVAS scientific-grade spectrophotometer offers long lamp life at 120 nm and is designed for analysis of doped and crystalline materials, deep-UV optics, and coatings.
McPherson Model 718 power supply

McPherson power supply has 250 W output power rating

The Model 718 universal light source power supply powers tungsten-halogen, ceramic, and glow-bar infrared light sources.
Content Dam Lfw Online Articles 2011 8 Mcpherson Web

Power supply from McPherson suits use with photomultiplier tubes

The Model 7640 high-voltage power supply series is designed for use with photomultiplier tubes, channel electron multipliers, microchannel-type detectors, and other devices requiring...

McPherson high-resolution spectrometer features 50 mm focal plane

The Model 2061 high-resolution spectrometer measures >0.02 nm at full-width half-maximum (FWHM) spectra for emission, luminescence, Raman (strained silicon), and high-temperature...
Test & Measurement

Polish researchers use McPherson spectrometer for VUV-phosphor lighting research

To develop vacuum-ultraviolet (VUV)-excitable phosphors, researchers at the Institute of Low Temperature and Structure, Polish Academy of Science have contracted McPherson Instruments...
Content Dam Etc Medialib New Lib Laser Focus World Online Articles 2010 11 96775

XUV calibration source from McPherson provides sample and reference comparison

The Model 642-1 calibration light source for extreme ultraviolet (EUV) and soft x-ray (XUV) features a six-position anode carousel to exchange target materials.