Abstract
The real n (ν) and imaginary k (ν) parts of the complex refractive index Nˆ = n + i k of water at 27 °C have been determined from measurements of spectral reflectance at near-normal incidence and from measurements of the transmittance of water in carefully constructed absorption cells. Values of n (ν) are reported in graphical and tabular form for the spectral region 3800–27 800 cm−1; values of the Lambert absorption coefficient α(ν) are presented graphically and in tabular form, along with k (ν) for the region 3800–14 500 cm−1. Upper limits of k (ν) are established for the region 14 500–27 800 cm−1. The results are compared with earlier studies.
Keywords
Affiliated Institutions
Related Publications
Sensitive measurement of optical nonlinearities using a single beam
A sensitive single-beam technique for measuring both the nonlinear refractive index and nonlinear absorption coefficient for a wide variety of materials is reported. The authors...
Optical Constants of the Noble Metals
The optical constants $n$ and $k$ were obtained for the noble metals (copper, silver, and gold) from reflection and transmission measurements on vacuum-evaporated thin films at ...
Normalized difference water index for remote sensing of vegetation liquid water from space
The normalized difference vegetation index (NDVI), which is equal to (NIR- RED)/(NIR+RED), has been widely used for remote sensing of vegetation for many years. One weakness of ...
Estimating Absorbed Photosynthetic Radiation and Leaf Area Index from Spectral Reflectance in Wheat<sup>1</sup>
Abstract Some plant growth models require estimates of leaf area and absorbed radiation for simulating evapotranspiration and photosynthesis. Previous studies indicated that spe...
Parameterizations for Water Vapor IR Radiative Transfer in Both the Middle and Lower Atmospheres
Water vapor contributes a maximum of 1°C/day to the middle atmospheric thermal infrared (IR) cooling. This magnitude is small but not negligible. Because of the small amount of ...
Publication Info
- Year
- 1974
- Type
- article
- Volume
- 64
- Issue
- 8
- Pages
- 1107-1107
- Citations
- 689
- Access
- Closed
External Links
Social Impact
Social media, news, blog, policy document mentions
Citation Metrics
Cite This
Identifiers
- DOI
- 10.1364/josa.64.001107