Does SCIO use lock-in (strobed) measurements?

[antsiro]

Hi,

 

I wander if SCIO is sensitive to illumination noise/variability or is it using lock-in amplification i.e. strobes excitation light to estimate actual emission spectra measured locked to the illumination strobe corrected by measured spectra obtained out-of-phase with the strobe, i.e. containing background illumination.

Does angle of scan contribute to the measurement variance  ? I imagine reflectance spectrum in NIR is also angle dependent, isn’t it?

[Ayelet]

Hi Anton,

 

SCiO measures the ambient light and subtracts it from the signal. It does not a lock-in amplifier.

A for different angles, SCiO can be held at different angles towards the sample (see image below), but the best practice is to hold SCiO straight,  facing the sample.

 

 

Ayelet,

The Consumer Physics Team

[Author]

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