Amino-heptamethines are highly conjugated cationic dyes featuring electronic absorption in the red region and strong near-infrared (NIR) fluorescence. Unlike their parent chloro-heptamethine cyanines, substitution of central position polymethine skeleton with an amine confers them a high Stokes shift. This work reports synthesis amino-heptamethines investigation optical properties, including tw...

A coupled vegetation growth and soil–vegetation–atmosphere transfer (SVAT) model is used in conjunction with data collected in the course of the SALSA program during the 1997–1999 growing seasons in Mexico. The objective is to provide insights on the interactions between grassland dynamics and water and energy budgets. These three years exhibit drastically different precipitation regimes and th...

Remote sensing has more advantages than the traditional methods of land surface water (LSW) mapping because it is a low-cost, reliable information source that is capable of making high-frequency and repeatable observations. The normalized difference water indexes (NDWIs), calculated from various band combinations (green, near-infrared (NIR), or shortwave-infrared (SWIR)), have been successfully...

The Pre-Aerosol, Cloud, and ocean Ecosystem (PACE) mission will carry into space a spectrometer measuring at 5 nm resolution in the ultraviolet (UV) to near infrared (NIR) and at lower resolution in spectral bands in the NIR and shortwave infrared (SWIR). These observations have great potential for improving estimates of marine reflectance in the post-EOS era. In view of this, we evaluate, usin...

Shortwave infrared window (SWIR: 1000–1700 nm) represents a major improvement compared to the NIR-I region (700–900 in terms of temporal and spatial resolutions depths down 4 mm. SWIR is fast cheap alternative more precise methods such as X-ray opto-acoustic imaging. Main obstacles imaging are noise scattering from tissues skin that reduce precision method. We demonstrate combination vivo NIR-I...

The 2WIDE SENSE (WIDE spectral band & WIDE dynamics multifunctional imaging SENSor Enabling safer car transportation) EU funded project is aimed at the development of a low-cost camera sensor for Advanced Driver Assistance Systems (ADAS) applications able to acquire the full visible to Short Wave InfraRed (SWIR) spectrum from 400 to 1700 nm. This paper presents the first results obtained by inv...