Spectrometers

370 Spectrometers from 31 manufacturers listed on Specpick

Find and compare spectrometer from the leading manufacturers. Filter results by wavelength, measurement techniques supported and other parameters to find the spectrometer that is right for you. Download Datasheets and Request Quotations.

Description:HR2000+ (Custom) Custom High Resolution Spectrometer for Maximum Flexibility
Spectrometer Type:
Modular, Portable
Measuring Techniques:
Irradiance, Reflectance & Transmittance
Wavelength Range:
190 to 1100 nm
Spectral Resolution:
0.035 to 6.8 nm
Integration Time:
1 ms - 65 seconds
Entrance Slit:
5, 10, 25, 50, 100 or 200 µm wide slits
more info
Description:STS-UV UV Spectral Analysis in a Tiny Footprint
Spectrometer Type:
Benchtop
Measuring Techniques:
Molecular Spectroscopy
Spectrum Band:
Infrared
more info
Description:Visible-Near IR Compact Spectroradiometer
Spectrometer Type:
Handheld, Portable
Measuring Techniques:
Irradiance Measurements
Wavelength Range:
350 to 1050 nm
Spectral Resolution:
0.3 nm
Integration Time:
1 - 20000 ms
Spectrum Band:
Infrared
A/D Resolution:
Digitilizer: 16 Bit Band
more info
Description:FLAME-CHEM Spectrometer Systems
Spectrometer Type:
Benchtop
Measuring Techniques:
Raman Spectroscopy, Fluorescence Spectroscopy
Wavelength Range:
1064 to 1700 nm
Spectral Resolution:
5 cm-1
Integration Time:
20ms to 1000 seconds
A/D Resolution:
16 bit
Stray Light:
0.0005
more info
Description:For UV to near IR (200 to 800 nm), High sensitivity type
Spectrometer Type:
Modular, Portable
Measuring Techniques:
NIR Spectrometer
Wavelength Range:
320 to 1000 nm
Integration Time:
10 to 10000 ms
Spectrum Band:
UV-NIR
A/D Resolution:
16 bits
Entrance Slit:
10 × 1000 pm(H x V)
more info
Spectrometer Type:
Modular, Portable
Measuring Techniques:
UV
Wavelength Range:
200 to 1160nm
Spectral Resolution:
0.09 to 20 nm
Integration Time:
1.82 ms - 60 sec
Spectrum Band:
UV
A/D Resolution:
Digitilizer: 16 bit, 1.33 MHz Band
more info
Spectrometer Type:
Modular
Measuring Techniques:
MIR Measurements
Wavelength Range:
1.5 to 6.3 µm
Spectral Resolution:
3 nm
more info
Description:Real-Time Terahertz Spectrometer
Spectrometer Type:
Modular
Measuring Techniques:
Real-time measurements, Paint and coatings layers ...
Wavelength Range:
760 to 1100 nm
Spectral Resolution:
4.5 THz to 2.5 GHz
more info
Description:Best in Class Raman Sensitivity Bench-top Raman Spectrometer
Spectrometer Type:
Benchtop
Measuring Techniques:
Raman Spectroscopy
Wavelength Range:
785 nm
Spectral Resolution:
100 to 3400 cm-1
more info
Description:HR2000+ES High Resolution Spectrometer with Enhanced Sensitivity
Spectrometer Type:
Modular, Portable
Measuring Techniques:
Irradiance, Reflectance & Transmittance
Wavelength Range:
190 to 1100 nm
Spectral Resolution:
0.9 nm
Integration Time:
1 ms - 65 seconds
Entrance Slit:
10 µm wide
more info

Spectrometers & Spectroscopy

Spectroscopy is the study of the interaction of electromagnetic radiation in all its forms with matter. This interaction might give rise to electronic excitations, (e.g. UV), molecular vibrations (e.g. IR) or nuclear spin orientations (e.g. NMR).

When a light or other radiation falls upon certain material liquid, gas or solid, a part of it gets absorbed by the material. This absorption causes the atoms, the molecules, and the bonds between them to vibrate at the same range of frequencies as the incident radiation. As a result we either see illuminance or a change in polarization or change in dipole moment. This entirely depends upon the type of radiation we are using.

Spectroscopy is the study of changes that occur in a sample due to absorption of the radiation. Spectrometers use these changes to identify and evaluate the sample. When a beam of white light strikes a triangular prism it is separated into its various components (ROYGBIV). This is known as a spectrum. The optical system which allows production and viewing of the spectrum is called a spectroscope or spectrometer. There are many other forms of light which are not visible to the human eye and spectroscopy is extended to cover all of these.

How does a spectrometer work:

A spectroscopic instrument or spectrometer generally consists of an entrance slit, collimator, a dispersive element, such as a grating or prism, focusing optics and a detector. In a monochromator system there is normally also an exit slit, and only a narrow portion of the spectrum is projected on a single one-element detector. In monochromators the entrance and exit slits are in a fixed position and can be changed in width. Rotating the grating scans the spectrum. 

The basic function of a spectrometer is to take in light, break it into its spectral components, digitize the signal as a function of wavelength, and display it through a computer. The first step in this process is to direct light through a fiber optic cable into the spectrometer through a narrow aperture known as an entrance slit. The slit vignettes the light as it enters the spectrometer. In most spectrometers, the divergent light is then collimated by a concave mirror and directed onto a grating. The grating then disperses the spectral components of the light at varying angles, which are then focused by a second concave mirror and reflected on to the detector. Alternatively, a concave holographic grating can be used to perform all three of these functions simultaneously. This alternative has various advantages and disadvantages, which will be discussed in more detail later on.

Once the light is imaged onto the detector the photons are then converted into electrons which are digitized and read out through a USB (or serial port) to a computer. The software then interpolates the signal based on the number of pixels in the detector and the linear dispersion of the diffraction grating to create a calibration that enables the data to be plotted as a function of wavelength over the given spectral range. This data can then be used and manipulated for countless spectroscopic applications.