Hi, I am trying to establish the levels of performance of the DLPNANOEVM and the DLPNIR module TIDA-00155. The data given in the data sheets refers to a 'signal to noise' ratio - but there is no indication of the optical sensitivity (ie how much light is needed in quanta, or mW etc) to give a certain level of signal, nor the noise level under the same acquisition conditions. Does anyone have this detailed info? Also, do we know the focal length of the lenses inside the modules, the ruling of the grating (in g/mm) and the effective focal length of the spectrograph stage?
My work requires the spectral range 1800 - 2400 nm, which the only the more expensive TIDA-00155 module covers as standard - ideally I would like to see one in action, but it seems there are no demonstrators available, and they are an expensive gamble if they don't do the job (half the cost of an FT-NIR module...).
Another option is to buy one of the much cheaper DNPNANOEVM and change the grating angle and the detector (form regular InGaAs to extended InGaAs or PbS/PbSe), but that needs the more detailed specifications to make it easier..
Comments from anyone who has played with or owns one of these systems would be most welcome.
Thanks
