Spectroscopy Solutions - Tunable Tungsten Halogen Light Source – LSH-T

Optimized design to provides high and flat optical power for NIR application

HORIBA Scientific offers tunable NIR illuminators that consist of the LSH-T tungsten halogen illuminator coupled to one of our many monochromators/spectrographs.

Segment: Scientific
Division: Custom Spectroscopy Solutions
Base product
Manufacturing Company: HORIBA Scientific

Tungsten halogen lamps are typically selected for their NIR performance and relatively flat spectral output, however when coupled to a monochromator to form a tunable NIR illuminator we also offer a highly efficient PowerArc 75 watt xenon lamp illuminator that delivers more light through a monochromator for all wavelengths up to around 1 micron

The choice of spectrometer depends on spectral resolution, wavelength range and experimental flexibility required. In some cases a xenon lamp may be a better light source choice because the significantly higher optical power density of these sources delivers more photons through the narrow slits of the spectrometer. Many of our monochromators and spectrographs have dual entrance ports allowing two different light sources to be used with a tunable illuminator. The only real limitation on the choice of spectrometer is the f/#. The f/#of the spectrometer should be no greater than f/4.1 so that the focal cone of the LSD-TH lamp housing does not over fill the optics of the spectrometer and hence introduce stray light.

HORIBA Scientific spectrometers suitable for use with the LSH lamp housing

 

Type

Focal Length (mm)

Resolution1(nm)

F/#

# of Gratings Turret

Dual Entrance/Exit

Automation

 

MicroHR Series

 

MicroHR Manual Imaging Spectrograph

140

0.25

3.9

1

No / Yes

Turret (optional)

MicroHR Automated Imaging Spectrograph

140

0.25

3.9

2

No / Yes

Turret (optional)

Triax Series

 

Triax 180 Imaging Spectrograph

190

0.3

3.9

3

No / No

Turret

Triax 190 Imaging Spectrograph

190

0.3

3.9

3

No / Yes

Slits (optional)

 

Gemini Series

 

 

Gemini 180 Double Monochromator

360 (180 + 180)

0.15

3.8

1

No / No

Slits

 

iHR Series

 

iHR 320
Imaging Spectrograph

320

0.06

4.1

3

Yes / Yes

Turret

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