Publication - Journal Article Real-time standoff detection of nitrogen isotopes in ammonia plumes using a swept external cavity quantum cascade laser DOI https://doi.org/10.1364/ol.43.004065 Journal Article Optics Letters, vol. 43, iss. 17, pp. 4065, 2018 Authors Mark C. Phillips, Brian E. Brumfield, Sivanandan S. Harilal Language English