Spectrum NIR Optical constants spectrum of H2O liquid at 273.5 K Spectrum NIR Optical constants spectrum of H2O liquid at 293 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 20 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 30 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 40 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 50 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 60 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 70 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 80 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 90 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 100 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 110 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 120 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 130 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 140 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 150 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 160 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 170 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 180 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 190 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 200 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 210 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 220 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 230 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 240 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 250 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 260 K Spectrum NIR Optical constants spectrum of H2O Ih crystal at 270 K