Fourier transform spectrometers (FTS), mostly working in infrared (IR) or near infrared (NIR)
range, provide a variety of chemical or material analysis with high sensitivity and accuracy …

Compact, on‐chip spectrometers exploiting tailored disorder for broadband light scattering
enable high‐resolution signal analysis while maintaining a small device footprint. Due to …

Human saliva can be treated as a pool of biological markers able to reflect on the state of
personal health. Recent years have witnessed an increase in the use of optical devices for …

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

A miniaturized methane (CH_4) sensor based on nondispersive infrared absorption is
realized in MEMS technology. A high level of functional integration is achieved by using the …

Miniature spectrometers provide promising potential for on-chip or in situ optical analysis. In
recent years there has been significant progress towards reducing the size and improving …

A miniature low-cost pixelated gradient thickness optical filter is proposed to achieve
spectroscopy in the visible wavelength range. The optical filter consists of a two-dimensional …

This letter demonstrates a miniature spectrometer suitable for transmission spectroscopy. A
MEMS oscillating mask is designed to encode the light distribution dispersed along a slit. A …

A microelectromechanical systems (MEMS) mirror with large vertical displacement has been
developed for Fourier transform microspectrometers, but there exists a large tilting during the …

A robust and highly miniaturized optical gas sensor based on optical absorption
spectroscopy is presented. By using the resonator cavity of a linear variable optical filter …