Maki Arthur G, Wells Joseph S
National Institute of Standards and Technology, Gaithersburg, MD 20899.
National Institute of Standards and Technology, Boulder, CO 80303.
J Res Natl Inst Stand Technol. 1992 Jul-Aug;97(4):409-470. doi: 10.6028/jres.097.019.
This new calibration atlas is based on frequency rather than wavelength calibration techniques for absolute references. Since a limited number of absolute frequency measurements is possible, additional data from alternate methodology are used for difference frequency measurements within each band investigated by the frequency measurements techniques. Data from these complementary techniques include the best Fourier transform measurements available. Included in the text relating to the atlas are a description of the heterodyne frequency measurement techniques and details of the analysis, including the Hamiltonians and least-squares-fitting and calculation. Also included are other relevant considerations such as intensities and lincshape parameters. A 390-entry bibliography which contains all data sources used and a subsequent section on errors conclude the text portion. The primary calibration molecules are the linear triatomics, carbonyl sulfide and nitrous oxide, which cover portions of the infrared spectrum ranging from 488 to 3120 cm. Some gaps in the coverage afforded by OCS and NO are partially covered by NO, CO, and CS. An additional region from 4000 to 4400 cm is also included. The tabular portion of the atlas is too lengthy to include in an archival journal. Furthermore, different users have different requirements for such an atlas. In an effort to satisfy most users, we have made two different options available. The first is NIST Special Publication 821, which has a spectral map/facing table format. The spectral maps (as well as the facing tables) are calculated from molecular constants derived for the work. A complete list of all of the molecular transitions that went into making the maps is too long (perhaps by a factor of 4 or 5) to include in the facing tables. The second option for those not interested in maps (or perhaps to supplement Special Publication 821) is the complete list (tables-only) which is available in computerized format as NIST Standard Reference Database 39, Wavelength Calibration Tables.
这本新的校准图谱基于用于绝对参考的频率而非波长校准技术。由于绝对频率测量的数量有限，对于频率测量技术所研究的每个波段内的差频测量，会使用来自替代方法的额外数据。这些互补技术的数据包括现有的最佳傅里叶变换测量结果。与图谱相关的文本中包括外差频率测量技术的描述以及分析细节，包括哈密顿量、最小二乘法拟合和计算。还包括其他相关因素，如强度和线型参数。一份包含所有使用的数据源的390条目的参考文献列表以及随后关于误差的部分结束了文本部分。主要的校准分子是线性三原子分子，羰基硫和一氧化二氮，它们覆盖了从488至3120厘米的红外光谱部分。OCS和NO2所提供的覆盖范围中的一些空白部分由NO、CO和CS部分覆盖。还包括4000至4400厘米的额外区域。图谱的表格部分太长，无法包含在存档期刊中。此外，不同用户对这样的图谱有不同的要求。为了满足大多数用户的需求，我们提供了两种不同的选项。第一种是NIST特别出版物821，它采用光谱图/对页表格式。光谱图（以及对页表）是根据为这项工作推导的分子常数计算得出的。构成这些图谱的所有分子跃迁完整列表太长（可能长4到5倍），无法包含在对页表中。对于那些对图谱不感兴趣（或者可能是为了补充特别出版物821）的人来说，第二种选项是完整列表（仅表格），它以计算机格式作为NIST标准参考数据库39《波长校准表》提供。
