News and Press Releases

April 3, 2018, Save the date! spectrophotometer practice at McPherson New hands-on learning opportunity for Spring 2018. Get access to vacuum- and purged deep UV spectrophotometers and knowledgeable instructors. We spend time in the classroom and running instruments, learning and practicing best operating procedures. Bring a sample! This course provides a great way to see what deep UV spectrometers can do and help you develop the skills to realize their full potential in your laboratory. Held at McPherson headquarters in Chelmsford, Massachusetts USA April 3, 2018. Flyer and registration detail here.

February 2018 - 5-ways to improve UV spectroscopy Vacuum UV monochromator for analytical and diagnostic applications For applications like HHG spectroscopy, plasma diagnostics, vacuum ultraviolet optical characterization, metrology and calibration the Model 234/302 meets the challenge. This research grade spectrometer has uncompromising performance. It is our pleasure to deliver components as well as system-level solutions. The Model 234/302 is also available for ultra high vacuum (UHV), metal-sealed, 10E-10 Torr applications. Call or email today to learn how the Model 234/302 fits into your experiments.

December 2017 - Triple spectrometer for Raman Raman shift 4cm-1, tunable, deep UV response, stigmatic Materials Research Forum is managed by Thomas Wohlbier McPherson triple monochromators work fast as f/5 with rejection edges down to 4cm-1. That’s more light gathering power and tighter edges than other spectrometers. McPherson’s reflective designs are tunable reaching the deep UV, 190 nanometers or less if necessary. For ultimate throughput, we offer astigmatic optics too. Check out McPherson singles and triples, well equipped for Raman, photoluminescence, and Thomson scattering
Thanks to Materials Research Forum and Thomas Wohlbier for spreading the word about unique tools for material research and spectroscopy!

November 2017 - Direct detection CCD + Software measuring short wavelength spectrum from 30 to 550 nanometers There is a whole new way to communicate with McPherson spectrometers! New and many legacy McPherson instruments can now be addressed and controlled by a new Add-In for Princeton Instruments' powerful 64-bit LightField software. This new software allows users to keep all the benefits of LightField while controlling wavelength of McPherson deep UV and soft x-ray spectrometers. This integrates Princeton's premier scientific CCD detectors with McPherson's high performance spectrometers - a boon for spectroscopy researchers worldwide.

October 2017 - Imaging spectrometer for VUV measuring short wavelength spectrum in two directions The newest McPherson vacuum ultraviolet imaging spectrometer measures very short wavelengths of light as emitted from hot plasma, synchrotron storage rings, or free-electron and high-harmonic lasers. This instrument has a specially designed optical path allowing it to measure (vertical) spatial profile in addition to (horizontal) dispersed wavelengths. It operates under high vacuum 10e-6 mbar and is available with all metal seals for ultra high vacuum too. Instruments like this are working to solve the magnetically confined thermonuclear fusion riddle at research facilities like HL-2A and superconducting EAST in China.

August 2017 -
High-energy UV lamp windowless gas ionizaion uv lamp for calibrating spectrometers McPherson is pleased to announce new and improved stability with flow controlled McPherson windowless, hollow cathode UV lamp Model 629. This broad-spectrum source emits ionized gas emission lines with little or no absorption by neutral gas. Computer controlled gas flow and constant current power supply improve stability for better spectroscopy. The Model 629 windowless, hollow cathode source is useful for wavelength calibration and other experiments at emission wavelengths from double ionized Helium (30nm) and above.

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May 2017 - Visit McPHERSON at ICOPS! 44th International Conference on Plasma Science (ICOPS 2017) at the Harrah's Resort Atlantic City. May 21-25, 2017 Just three weeks to go! Stop by the McPherson exhibit! The 44th IEEE Int'l Conference on Plasma Science (ICOPS 2017) is May 21-25 at the Harrah's Resort in Atlantic City, New Jersey. More about high resolution spectrometers useful for optical velocity, rotation and temperature measurements along with vacuum ultraviolet and soft x-ray models for high energy emission line survey and detection/monitoring.

February 2017 - New High Vacuum Spectrometer stainless steel housing high vacuum monochromator for calibration and spectroscopy The new McPherson Model 207V (PDF data sheet)is an important part of deep-UV and VUV imaging and analytical spectroscopy systems. It works over a broad spectral range, from the deep UV, through the Visible into the long-wave Infrared. Its clean construction is ideal for contaminant free purge and vacuum applications. The Model 207V is a 670mm focal length optically fast f/4.7 monochromator with a vacuum tight housing. Stigmatic performance with off axis parabolic optics is available for the 207V too. With stainless steel housing capable of 10E-6 torr vacuum, this instrument works unfettered over a very wide wavelength range. Depending on the grating(s) installed it can go from 110 nanometers to 15 microns! The vacuum construction is useful for deep ultraviolet AND also for the Infrared. Vacuum removes atmospheric constituents (gas or vapor) that absorb light wavelengths in both spectral regions.
PDF copy of this press release here. Find more information at the web page

January 2017 - Deep UV Polarization rotatable UHV double monochromator for non polarized short wavelength light testing We are pleased to announce the newest McPherson vacuum ultraviolet spectral test system VUV-STS. This novel instrument measures optical reflectance as a function of angle of incidence. It can help determine optical constants. It is specially built to work with non-polarized light (!) in the 30 to 160 nanometer wavelength region. This new twist from McPherson helps users test materials, multilayers and coatings “at wavelength" for applications like attosecond spectroscopy and HHG, optical design for space applications, wavelength calibration, and thin-film / coating technique design. Read more

November 2016 - New High Brightness Monochromator McPherson 207A stigmatic monochromator with 670mm focal length, and optically fast f/4.7 The new Model 207A is a 670mm focal length optically fast f/4.7 monochromator. It is now available with off-axis parabolic optics. The off-axis parabolic (OAP) mirrors provide low f/number and stigmatic monochromator performance. Stigmatic monochromators provide coincident sagittal and tangential foci for perfect collimation and focusing. These highly polished OAP mirrors have smooth surfaces (not diamond turned) and are well suited for work in the deep UV and even the vacuum ultraviolet region. The Model 207A preserves high brightness with no chromatic aberrations! Read more

May 2016 - VUVAS-10X Analytical Monochromator A new ultraviolet spectrophotometer system for optical metrology just arrived at NASA Goddard! The VUVAS-10X spectrophotometer works best in the 90 to 160 nanometer wavelength range, also known as deep or vacuum ultraviolet (VUV) region. It uses a windowless hydrogen plasma light source and differential pump section to reach many wavelengths beyond those of conventional deuterium lamps. The source also works with other gases, or gas mixtures, for atomic spectral line emission from about 30 nanometers (double ionized Helium gas) up to the Visible light range. The new spectrophotometer system, McPherson VUVAS-10X, uses a one-meter focal length high-resolution monochromator with the special light source, scintillated detector and Model 121 goniometric sample chamber. The system is ideal for optical transmission, absorbance and specular reflectance at incident angles up to 60 degrees. This McPherson spectrophotometer system will help develop, inspect and qualify optical materials and coatings used for very high altitude and extraterrestrial space flight missions.

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April 2016 - Vacuum safe Amplifier on Ceramic Board McPherson VUV series photodiodes are used for the detection of UV, EUV and soft X-ray (wavelength range 1100 nm to .124 nm, energy range 1.13 eV to 1 keV) photons. High vacuum compatible, current to voltage converting amplifier specifically for use with vacuum ultraviolet Silicon photodiodes. With integral socketed photodiode mount, the combination detector/amplifier hybrid is used to measure small photo generated current of 10 fA with four orders of magnitude dynamic range. Read more

December 2015 - High Energy XUV Spectrometer grazing incidence spectrometer for short wavelengths provides quick, accurate wavelength identification and helps attosecond, compact EUV and high-harmonic laser generation researchers McPherson’s grazing incidence wavelength dispersive optical spectrometer allows rapid analysis of spectral light in the ~1 to 300nm wavelength region (4 to 1200 eV.) Beside high-harmonic laser generation experiments, the Model 248/310 is also useful for ...

December 2015 - Measuring Light at the National Institute of Metrology quiet, pure spectral light for metrology and radiometric measurmeents A Model 2035DS double monochromator, collimator, variable-angle sample chamber, integrating spheres and more make up the system for the National Institute of Metrology (NIMT). The double monochrometer allows users to “dial in” very pure wavelengths of light -- invisible ultraviolet to infrared. The light is sent to samples-under-test. Samples include optical materials, windows, filters, coatings, solar cells, photo sensitive detectors and so on. The McPherson system allows the users to test diverse materials with different wavelengths of light

November 2015 - Spectral Test Station for Visible, NIR and LWIR stiff, strong adjustable support and mount Sensors, seekers, and digital cameras are pervasive. CCD, CMOS, InGaAs and further to the infrared, each exhibits unique response. The spectral test station delivers discreet, high purity wavelength bands to devices under test. This helps characterize the response of sensors to specific wavelengths of light in order to calibrate ...

October 2015 - Strut your Stuff! stiff, strong adjustable support and mount The strut support system has up to six degrees of freedom; translational: X, Y, Z; and angular: pitch, roll, and yaw. It consists of a support system made up of adjustable struts, and provides support without adding stress or distortion. The result is a strong, rigid system that allows easily positioning, even heavy equipment...

September 2015 - New, Adjustable 10,000 Volt Power Supply stable, adjustable 10 kV high voltage power supply Model 7645 operates sensitive photomultiplier tubes and related devices for critical photometric and spectroscopy applications. It is a proven reliable, stable source of high voltage. The Model 7645 10-kV power supply is the largest in this series of power supplies...

July 2015 - New Flat-field Diffraction Grating flat field aberration corrected spectrometer for SXR, EUV and VUV improves efficiency and range in the soft x-ray and extreme ultraviolet. The new grating extends the efficient range of the McPherson Model 251MX for more sensitive spectral acquisition. With a digital camera and adjustable slits it now works from ...

May 2015 - Extended lifetime UV Spectroscopy direct detection VUV absorbance spectrophotometer is possible with the VUVAS spectrophotometer inert gas purge improves stability and lifetime of deep UV optics. Increased up time, fewer spare parts, longer lasting all with better performance. This spectrophotometer is ideal for the 120 to 350 nanometer wavelength range for reflectance, transmittance, and VUV absorbance

March 2015 - CCD array VUV Spectrophotometer fast deep and vacuum UV spectrophotometer McPherson's newest VUVAS spectrophotometer capitalizes on the speed and sensitivity of direct detection, ultraviolet sensitive CCD detectors. Fast spectrophotometer works with cryostat to allow spectral absorption vs temperature or time measurements. Operates 120 to 1000 nanometers overall

February 2015 - McPhersons compact double-monochromator double-monochromator as tunable edge rejection filter for ultraviolet Raman works as a tunable filter with adjustable Rayleigh edge-rejection and bandpass. It can work to wavelengths as short as 190 nanometers with no special preparation. Diffraction gratings with aberration correction and good efficiency from 190 nanometers ultraviolet to the infrared are available.

January 2015 - Deep UV Luminescence Deep Ultraviolet Spectrometer for luminescence, phosphors, photoemission applications Spectrophotometer for material science and display / lighting research. This vacuum ultraviolet optical test system is for samples that emit light, like phosphors or photo- and electro-luminescent crystals. It can measure reflectance, transmission and photoemission over its complete working, 120 nanometers to 2.2 microns.