Coupling mid-infrared “idler” photons with near-infrared “signal” photons enables cheaper, smaller and more efficient machines for uses such as greenhouse gas monitoring to medical diagnostics.

Learn how spectroscopy facilitates non-invasive, real-time bio-monitoring, enhancing decision-making in healthcare, ...

Sum-frequency generation (SFG) is a powerful vibrational spectroscopy that can selectively probe molecular structures at ...

From small private wells producing around 100 barrels a day to the large bore wells producing more than 40 times that volume, gas and oil and for fuel are produced in nearly every corner of the globe.

Substantial miniaturization of infrared (IR) sensors is necessary for their incorporation into next-generation portable electronics, wearable devices, and small satellites. However, modern infrared ...

This is a close-up view of the “spectrometer-on-a-chip” technology that could dramatically reduce the size of spectrometers in the future. (Credit: NASA Goddard/Chris Gunn) The Composite Infrared ...

NIR spectroscopy concerns the analysis of how NIR light and matter interact. In spectroscopic analysis, light is determined by the wavelength, not by the applied energy. The wavelength of light is ...

Ch. 1. Introduction to near-infrared spectra -- ch. 2. Alkanes and cycloalkanes -- ch. 3. Alkenes and alkynes -- ch. 4. Aromatic compounds -- ch. 5. Hydroxyl ...

Researchers have miniaturized a spectrophotometer onto a single chip that can analyze any wavelength of visible light and part of the infrared spectrum (Science 2021, DOI: 10.1126/science.add8544).

For decades, the ability to visualize the chemical composition of materials, whether for diagnosing a disease, assessing food ...