| abstract |
A sample holder comprises a spectral encoding material to encode a measurement signal of the sample with a spectral identification signal. The spectral encoding material has the advantage of providing an encoded signal with the measurement signal, which can help to ensure that the sample is appropriately identified. The sample holder may comprise one or more of a support, a container, a waveguide, or a substrate. The spectral encoding material may comprise a spectrally encoding solution, spectrally encoding particles, or one or more spectrally encoding layers of material. The spectral encoding material may comprise a calibration material, such as a polymer. |