There are increasingly diverse applications for spectroscopy, many in NIR and UV as well as VIS, or visible light. Torrent offers devices for each and can help to determine the right approach for your application.

VIS spectroscopy is most often used in color analysis. Spectrophotometers can be used for in-line detection for quality control in manufacturing, where light will couple into the spectrometer and give a reading. Applications can range from color analysis in printing to a wide range of consumer products.

More advanced applications, such as those used in food safety, are typically NIR spectrometry. Multispectral sensing, in visible and NIR wavelengths, is often a better fit for agricultural applications like crop monitoring and food quality testing, including ripeness and bruising, quality grading and sorting, and other non-invasive inspections.

Torrent Photonics’ spectral devices are designed for easy OEM integration into systems. The Renegade spectrometer, for example, is fiber-coupled, compact, and customizable, in an environmentally stable and compact package. In-house optoelectronic design experts can create custom firmware to support OEMs’ existing architecture.

Suitable for use in handheld or benchtop lab instruments, Torrent’s UV-VIS or VIS spectrometer platforms offer the highest sensitivity and self-contained design for ease of integration. The Renegade has been proven in market-leading instrument companies’ chemical analysis platforms.

Spectroscopy is point detection—measuring what you can get collimated and is used in a broad range of applications, with wavelength requirements a driving factor in selection.

Spectrometers are a subset of spectral devices, which include hyperspectral and multispectral cameras and other imaging solutions, for broader wavelength requirements or broader area detection.

Transmissive gratings, like the diffraction grating and UV CMOS detector in the Renegade, offer higher sensitivity compared to traditional reflective gratings used on most spectrometers on the market.

The higher sensitivity makes these spectrometers well-suited to semiconductor metrology and other stringent quality control applications. The fine patterning and deep etches of these transmissive gratings allow for increased sensitivity.

While Renegade is a versatile and OEM-ready system ideal for spectroscopy prototyping and many system designs, Torrent can provide transmissive gratings, optoelectronics, components and sub-assemblies for custom spectroscopy system designs.

Transmissive gratings such as those designed and manufactured by Torrent are increasingly used in stress testing, to measure stress in real time, in optical coherence tomography (OCT), a non-invasive imaging technique that uses light waves to create cross-sectional images of the retina, and pathology detection, using UV, VIS, and fluorescence spectroscopy.