Abstract

In 1938, presumably for the first time, emission spectroscopy was used for determining the abundance of the heavy isotope in natural nitrogen. Since then optical ¹⁵N analysis, including sample preparation, has been developed and refined.

Coherent linear optical sampling at 15 bits of resolution

I. Coddington, W. C. Swann, and N. R. Newbury
Opt. Lett. 34(14) 2153-2155 (2009)

High-resolution electronic emission spectrum of molecular nitrogen at 15300 Å

W. Benesch, C. C. Jones, E. J. Beiting, and P. D. Feldman
J. Opt. Soc. Am. 68(4) 432-437 (1978)

High-Resolution Emission Lyman-Birge-Hopfield Bands of Nitrogen

R. E. MILLER
J. Opt. Soc. Am. 60(2) 171-176 (1970)

Investigation and development of a high spectral resolution coherent optical spectrum analysis system

Kunpeng Feng, Jiwen Cui, Hong Dang, Shiyuan Zhao, Weidong Wu, and Jiubin Tan
Opt. Express 24(22) 25389-25402 (2016)

Real-time standoff detection of nitrogen isotopes in ammonia plumes using a swept external cavity quantum cascade laser

Mark C. Phillips, Brian E. Brumfield, and Sivanandan S. Harilal
Opt. Lett. 43(17) 4065-4068 (2018)