Optical spectrometers enable contactless chemical analysis. However, decreasing both their
size and cost appears to be a prerequisite to their widespread deployment. Chip-scale …

Deep learning DL models of NIR spectral data outperforms traditional chemometrics
algorithms specially when analyzing complicated materials spectra with overlapping bands …

Microplastics are particulate water contaminants that are raising concerns regarding their
environmental and health impacts. Optical spectroscopy is the gold standard for their …

Optical spectrometers are essential tools for analysing light‒matter interactions, but
conventional spectrometers can be complicated and bulky. Recently, efforts have been …

Miniaturized spectrometers are being developed in the recent few years leveraging the
rapidly-progressing technology and triggering new markets in the field of on-site and mobile …

Smart, low-cost and portable gas sensors are highly desired due to the importance of air
quality monitoring for environmental and defense-related applications. Traditionally …

Handheld Fourier transform infrared (FT-IR) spectrometers are very promising candidates for
several applications where accurate real-time material detection and quantification are …

This letter introduces a monolithically integrated microspectrometer based on triple cavities
operating in a coupled configuration. Two scanning cavities are sandwiching a static one …

The conventional methods used for the diagnostics of viral infection are either expensive
and time-consuming or not accurate enough and dependent on consumable reagents. In the …

Miniature and low‐cost light sources are highly desirable for numerous optical
microsystems. Among these, devices based on blackbody radiation of a filament heated at a …