( ( The instrument ) ( ( ( passes ( light ( in ( the ( near ( infrared ( wavelength spectrum ) ) ) ) ) ) ) ( onto ( the samples ) ) ) . ) )
(ROOT (S (NP (DT The) (NN instrument)) (VP (VBZ passes) (NP (NP (NN light)) (PP (IN in) (NP (DT the) (JJ near) (JJ infrared) (NN wavelength) (NN spectrum)))) (PP (IN onto) (NP (DT the) (NNS samples)))) (. .)))
The instrument passes light in the near infrared wavelength spectrum onto the samples.
(ROOT (S (NP (NP (NNP Light)) (PP (IN with) (NP (DT the) (JJS longest) (NNS wavelengths)))) (VP (VBZ is) (VP (VBN called) (NP (JJ infrared) (NN light)))) (. .)))