Miniaturized computational spectrometers have emerged as a promising strategy for
miniaturized spectrometers, which breaks the compromise between footprint and …

Spectral sensing is increasingly used in applications ranging from industrial process
monitoring to agriculture. Sensing is usually performed by measuring reflected or transmitted …

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 …

Chip-scale microspectrometers, operational across the visible to long-wave infrared spectral
region will enable many remote sensing spectroscopy applications in a variety of fields …

Numerous applications exist for chemical detection, ranging from the industrial production of
chemicals to pharmaceutical manufacturing, environmental monitoring, and hazardous risk …

Smartphones are a potentially powerful platform for scientific instruments. Here, we
demonstrate speckle spectroscopy with smartphone-level hardware. This technique …

The identification of chemicals from their mid‐infrared spectra has applications that include
industrial production of chemicals, food production, pharmaceutical manufacturing, and …

Mid-infrared wavelengths are called the molecular fingerprint region because it contains the
fundamental vibrational modes inherent to the substances of interest. Since the mid-infrared …

Spectrometer miniaturization is desired for handheld and portable applications, yet nearly
no miniaturized spectrometer is reported operating within terahertz (THz) waveband …

This paper presents the design of an ultra-wide-angle multispectral narrow-band absorber
for reconstructing infrared spectra. The absorber offers several advantages, including …