Light scattering effects can be noticed every day when we look at the sky or the atmosphere. The main reason why the sky is blue on a sunny day is Rayleigh scattering (after Lord Rayleigh) of sunlight, i.e., the scattering of electromagnetic radiation by particles much smaller than the wavelength. However, for cloud and haze scattering, the Mie theory (after Gustav Mie) is very important where ...

One-dimensional crystal growth enables the epitaxial integration of III-V compound semiconductors onto a silicon (Si) substrate despite significant lattice mismatch. Here, we report a short-wavelength infrared (SWIR, 1.4-3 μm) photodetector that employs InAs nanowires (NWs) grown on Si. The wafer-scale epitaxial InAs NWs form on the Si substrate without a metal catalyst or pattern assistance; t...

Bare soil is a critical element in the urban landscape and plays an essential role environments. Yet, separation of bare other land cover types using remote sensing techniques remains significant challenge. There are several sensing-based spectral indices for barren detection, but their effectiveness varies depending on patterns climate conditions. Within this research, we introduced modified i...

In the biometrics community, challenge datasets are often released to determine the robustness of state-of-theart algorithms to conditions that can confound recognition accuracy. In the context of automated human gait recognition, evaluation has predominantly been conducted on video data acquired in the active visible spectral band, although recent literature has explored recognition in the pas...

Visualizing structures deep inside opaque biological tissues is one of the central challenges in biomedical imaging. Optical imaging with visible light provides high resolution and sensitivity; however, scattering and absorption of light by tissue limits the imaging depth to superficial features. Imaging with shortwave infrared light (SWIR, 1-2 μm) shares many advantages of visible imaging, but...

Abstract Colloidal InAs quantum dots (QDs) are emerging candidates for NIR-SWIR optoelectronic applications because of their excellent electrical and optical properties. However, the syntheses QDs, which demand strongly reducing atmospheres or highly reactive precursors, difficult covalent bonding lack Group 15 precursors. While coreduction method with commercially available arsenic precursors ...

We investigated the Fourier-transformed mid-infrared (MIR) and near-infrared (NIR) spectroscopic properties of mycorrhizal (M) and non-mycorrhizal (NM) carrot roots with the goal of finding infrared markers for colonization by arbuscular mycorrhizal (AM) fungi. The roots were cultured with or without the AM fungus Glomus intraradices under laboratory conditions. A total of 50 M and NM samples w...

Extending the wavelength range of spatial frequency domain imaging (SFDI) into the short-wave infrared (SWIR) has the potential to provide enhanced sensitivity to chromophores such as water and lipids that have prominent absorption features in the SWIR region. Here, we present, for the first time, a method combining SFDI with unstructured (zero spatial frequency) illumination to extract tissue ...