About the data Rachel Mastrapa 2 April 2008 The data is divided into three folders: optical constants (n_k, 16 files), the minimum value of the optical constants (min_n_k, 16 files), and the original spectra (54 files). All optical constant files are tab-delimited text. The first 6 lines begin with a "3" and are comments about the data. The first line is the title, the next two lines are input values for for n and d, followed by the final value for n (at 2.63 micrometers) and the number of iterations for the run. The last line is the titles of the data columns. The data are presented in four columns: Wavelength (micrometers), n, k, and T (Transmittance). The naming convention for the files is: phase_temperature.txt. For example, crystalline h2o-ice at 20 K is crys_20K.txt. The files that begin with "min" are the minimum values for the corresponding spectrum. That is, the minimum value spectra for 20 K crystalline h2o-ice is min_crys_20K.txt. Instead of numbers, the amorphous h2o-ice files are either high or low temperature. Also included with the data are the original spectra used for the calculation in the folder: original_spectra. These files consist of two columns of tab-delimted text. The first column is frequency in wavenumbers (1/cm) and the second column is % transmission. These spectra have not been baseline corrected or had the infrared interference fringes removed. For each set of optical constants, several spectra were averaged, resulting in a single spectrum. The spectra used for a given temperature and phase are listed below. Amorphous High Temperature 21sept06_4.txt 17april06_3.txt 17april06_4.txt 12april06_9.txt 12april06_10.txt Amorphous Low Temperature 19sept06_2.txt 19sept06_3.txt 19sept06_4.txt 19sept06_5.txt 19sept06_6.txt Crystalline 20 K 8sept06_14.txt 13sept06_14.txt 15sept06_2.txt Crystalline 30 K 8sept06_15.txt 8sept06_13.txt 13sept06_13.txt 13sept06_15.txt 15sept06_3.txt Crystalline 40 K 8sept06_16.txt 8sept06_12.txt 13sept06_12.txt 13sept06_16.txt 15sept06_4.txt Crystalline 50 K 8sept06_17.txt 8sept06_11.txt 13sept06_11.txt 15sept06_5.txt Crystalline 60 K 8sept06_10.txt 13sept06_10.txt 15sept06_6.txt Crystalline 70 K 8sept06_9.txt 13sept06_9.txt 15sept06_7.txt Crystalline 80 K 8sept06_8.txt 13sept06_8.txt 15sept06_8.txt Crystalline 90 K 8sept06_7.txt 13sept06_7.txt 15sept06_9.txt Crystalline 100 K 8sept06_6.txt 13sept06_6.txt 15sept06_10.txt Crystalline 110 K 8sept06_5.txt 13sept06_5.txt 15sept06_11.txt Crystalline 120 K 8sept06_4.txt 13sept06_4.txt Crystalline 130 K 8sept06_3.txt 13sept06_3.txt Crystalline 140 K 8sept06_2.txt 13sept06_2.txt Crystalline 150 K 15sept06_1.txt 8sept06_1.txt 13sept06_1.txt