Toggle navigation
* About
  + 
  * 
    + 
  - 
    - 
      - 
Integrated Systems for Spectroscopy (view as )
Systems organized by wavelength range. These scientific instruments & systems work in diverse applications including Biology / Life Science, Nanotechnology, Pharmacology, Photovoltaics / Solar Cells, Physical Chemistry, Environmental, Food Science, LEDs and Displays, Plasma Physics and Astrophysics. If you do not see the type of instrument that works best for your spectroscopy experiment, please .
#### **Deep UV tunable light source**
#### **Deep UV spectrophotometer**
#### **Corrected VUV Spectrophotometer**
#### **VUV Spectrophotometer plus Emission**
#### **VUV Emission, Excitation, Luminescence**
#### **Phosphor test, UV Excitation, PL, Persistance**
#### **Triple monochromator for Raman**
#### **Remote sensing**
#### **Spectroscopy workstation**
#### **Ultraviolet to infrared spectral test station**
#### **Spectral calibration and test station**
#### **Raman and PL workstation**
The above are examples of systems we've built many times. We welcome your new ideas too!
---
Back to top
©McPherson 2021 |  | Est. 1953 | Telephone 1-978-256-4512
  !
!
UV-VIS-IR Spectral Test Station for Calibration and Measurement
*** 4 Grating Turret for Wide Wavelength Range
* Fast f/4 Aperture Ratio, Better Througput Signal
* 125-mm Clear Aperture Collimated Output
* 3 Built In Light Sources**
This system was originally developed to determine detection ranges of heat seeking and light guided missiles. It meets the challenge of analyzing spectral sensitivity of detectors under development or in devices of unknown origin. It also serves as a spectral photometer if the large 5 inch (125 mm) monochromatic sample beam is used to measure transmissivity, reflectance or fluorescence of unusual samples.
This spectrometer uses reflective mirrors throughout the optical system and offers high resolution, high throughput, and optimized wavelength coverage.
The 190 nm to 20 micron selectable and scannable spectral energy emerges and reaches the sample stage in the form of a >125 mm collimated beam. This beam can be optically treated to also illuminate smaller sample areas.
| Optical Design | Czerny Turner design Monochromator / Spectrometer |
| --- | --- |
| Focal Length | 350 mm |
| Aperture Ratio | f/4.8 (NA 0.1) |
| Wavelength Range | refer to grating of interest for range |
| Wavelength Accuracy | ±0.2 nm |
| Wavelength Reproducibility | ± 0.05 nm (with 1200 G/mm grating) |
| Grating Size | 68 x 68 mm (single grating holder, optional dual-grating turret) |
| Slits | Micrometer adjustable width 0.01 to 4 mm, height settings from 2 to 20 mm |
| Slit Locations | Axial and lateral, with optional port selection mirrors |
| Focal Plane | 25-mm, multiply dispersion by the width of your detector for range |
#### Performance with various diffraction gratings:
| Grating Groove Density (g/mm) | **3600** | **2400** | **1800** | **1200** | **600** | **300** | **150** | **75** | **50** |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Spectral Resolution at 312.6nm (nm, FWHM) | 0.02 | 0.025 | 0.035 | 0.05 | 0.1 | 0.2 | 0.4 | 0.8 | 1.2 |
| Reciprocal Linear Dispersion (nm/mm) | 0.7 | 1 | 1.5 | 2 | 4 | 8 | 16 | 32 | 48 |
| Wavelength Range from 185nm to | 430 | 650 | 865 | 1.3 um | 2.6 um | 5.2 um | 10.4 um | 20.8 um | 31.2 um |
| First Order Littrow Blaze (nm) | 240 | 240 | 180 | 200 | 250 | 280 | 300 | 2 um | 600 |
|  | holo | 300 | 250 | 300 | 300 | 300 | 500 | 3 um | 12 um |||  |  | holo | 400 | 400 | 500 | 500 | 800 | 8 um | 14 um |||  |  |  | holo | 500 | 750 | 750 | 1.25 um | 10 um |  |||  |  |  |  | 750 | 1 um | 1 um | 2.5 um | 12 um |  |||  |  |  |  | 1 um | 1.8 um | 3 um | 4 um |  |  |||  |  |  |  | holo | holo | 4 um | 6 um |  |  |||  |  |  |  |  |  |  | 8 um |  |  ||
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| **Tunable 120 - 380nm Focused Output** (reflective and refractive optics)  | **Tunable 120 - 380nm Collimated Output** (all reflective optics)  |
| **Tunable 30nm+ Focused Output** (all reflective optics)  | **Tunable 120 - 380nm 150mm Collimated Output** (all reflective optics)  |
#### Select Publications
#### 
**Abstract:** Contactless measurements of water temperature are utilized in a number of sciences, such as oceanography, climatology, and biology. Previously reported Raman spectroscopy techniques exploited the changes in the shapes of water Raman bands. Interpretation of these changes is difficult since these bands are composed of multiple lines, each influenced not only by temperature but also by pressure and salinity. This paper presents a proof-of-principal demonstration of a contactless technique which determines water temperature from the ratio of Stokes and anti-Stokes intensities of the water 180 cm1 Raman band. This ratio is not sensitive to pressure and salinity, allowing reliable determination of water temperature.
S. P. Nikitin, C. Manka, J. Grun, and J. Bowles
**Abstract:** The luminous efficiency and lifetime of plasma display panels (PDPs) are directly related to the performance of phosphors used in PDPs, thus higher efficiency, higher stability against high temperature processes and a long lifetime along with good color chromaticity against vacuum-ultraviolet (VUV) radiation are major concerns in selecting suitable phosphors for PDPs. In the same pursuit, we have developed the nano-sized (15–40 nm) BAM:Eu2+, YAG:Tb3+ and YAG:Eu3+ as blue, green and red phosphors and studied their luminescence properties under VUV excitations. In BAM:Eu2+, the 5d-excitation of Eu2+ ions are found strongly dependent on the crystal field strength and Eu2+ occupy lattice ‘sites I’ by substituting Ba2+ ions. Whereas, in YAG:Tb3+, the observed green luminescence is assigned to 5D4?7Fj transitions (j = 3–6) due to electric dipole–dipole interaction, while, YAG:Eu3+ shows strong red luminescence corresponding to 5D0?7F2 transition. Time evolution studies along with decay time calculations are further employed to verify the sustainable emission without quenching.
Prashant K. Sharma, Ranu K. Dutta, Avinash C. Pandey
**Abstract:** Porous silicon samples have been prepared from p-type single-crystal silicon <100> by a galvanostatic and an open-circuit etch in 50% HF. The materials display bright red-orange room-temperature photoluminescence (PL) in air and toluene solution. Infrared measurements show that the porous silicon surface is partially oxidized. Exposure to anthracene (An) or 10-methylphenothiazine (MPTZ) results in dynamic quenching of the material's excited state(s). Nanosecond time-resolved PL decays are complex and wavelength dependent, with average lifetimes in neat toluene of 0.3-16 µs. Quenching by An and MPTZ is more efficient and rapid at short observation wavelengths. The steady-state and time-resolved quenching data are well fit to the Stern-Volmer model. The PL decays are well described by a skewed distribution of recombination rates.
Minh C. Ko and Gerald J. Meyer
**Abstract:** Discussed are the photoluminescence properties of combustion synthesized red and green emitting borate phosphors—YBO3 : Eu3+, BaZr(BO3)2 : Eu3+, YCaBO4 : Eu3+, YAl3(BO3)4 : Eu3+, YAl3(BO3)4 : Tb3+, LaBaB9O16 : Tb3+, LaBaB9O16 : (Ce3+,Tb3+), and Na3La2(BO3)3 : Tb3+-promising for use in plasma display panels and mercury-free fluorescent lamps.
P. A. Nagpure, S. K. Omanwar
**Abstract:** Coherent anti-Stokes Raman scattering (CARS) with femtosecond interaction pulses has become a popular and powerful spectroscopic method. Non-resonant background is one of the most limiting factors for implementing this method more widely. We propose a new approach that suppresses the non-resonant background contribution to the measured signal in CARS spectroscopy while simultaneously yielding high spectral resolution. The method is based on femtosecond pulse shaping of probe, Stokes and pump beams. Destructive interference suppresses the non-resonant background, resulting only in the resonant contribution being detected.
Stanislav O. Konorov, Michael W. Blades and Robin F. B. Turner
**Abstract:** We investigate the possibility of implementing coherent anti-Stokes Raman spectroscopy (CARS) with a single laser beam passed through a one-dimensional scattering object. The effect of the random scattering is emulated by shaping the laser pulses with a spectral mask corresponding to the transmission spectrum of a random layered medium. Raman resonances are retrieved through correlation analysis of the CARS spectrum. We study the effect of the scattering parameters on the resolution of the method, and show that improvement of the spectroscopic sensitivity can be achieved by compensating the phase distortions introduced by the scatterer
T.M. Drane, J.W. Hepburn and V. Milner
#### Quick Contact Form
Name
Email
 It's Okay to Email Quarterly Updates (never by third parties)
Comments
What are your spectral-resolution and wavelength-range requirements? Vacuum range, if applicable?
If you are requesting a formal quotation please include a complete contact address.
Go
Cancel
©McPherson 2020 |  | Est. 1953 | Telephone 1-978-256-4512