New world-record wavelength range configurations for Photon RT

EssentOptics, a leading producer of UV-VIS-MWIR spectrophotometers for optical coaters, sets a new benchmark for the effective wavelength range of this type of spectrophotometer instrument and announces the expanded Mid Wave IR (MWIR) range configurations for its Photon RT spectrophotometers.

The newly approved infrared source was developed and tested to meet growing customers' need for low-noise and repeatable optical measurements in Mid Wave IR. The tests results confirm its clear advantage over the traditional halogen lamp for 3.2 - 5.2 μm wavelength range measurement applications as it demonstrates both high signal stability and high illumination density. The signal-to-noise ratio is improved by a factor of greater 2 compared with the halogen lamp for the 3.4 - 4.2 μm wavelength range, and by greater than 5 times for the 4.5 – 5.2 μm wavelength range.

A team of EssentOptics experts analyzed the IR signal quality of the spectrophotometer's baseline and performed comparative test measurements for typical thin film coatings – a MWIR narrow bandpass filter and an aluminium mirror.
 

Baseline of the Spectrophotometer:

 

 

 

 

Test Measurements - Aliminium Mirror:

 

 

 

Test Measurements - Narrow Bandpass Filter, 4,85 μm.

 

 

 

 

The baselines measured with the new IR source demonstrate significantly higher stability and lower noise thus ensuring much better accuracy of measurements. Improved signal quality is also confirmed for variable angle and S/P polarization-dependent measurements up to 5.2 μm, which is unattainable for any other instruments on the market. 

Due to successful tests, the new PHOTON RT configurations are available immediately with full range polarization measurement capabilities: 380-3500 nm and 380-5200 nm. The advanced configurations are offered to our customers without any price increase.

More information: Photon RT Webpage