Becker, R. S.Golovchenko, JenePatel, J. R.2016-11-181983Becker, R. S., J. A. Golovchenko, and J. R. Patel. 1983. X-Ray Evanescent-Wave Absorption and Emission. Physical Review Letters 50, no. 3: 153-156. doi:10.1103/physrevlett.50.153.0031-9007http://nrs.harvard.edu/urn-3:HUL.InstRepos:29407050The presence and properties of x-ray evanescent waves are demonstrated detecting their absorption and their excitation in the vicinity of a target surface. The role of microscopic reversibility in relating the two cases is discussed and practical applications of the phenomena to probe interfaces are suggested.en-USJournal Article2016-11-1810.1103/PhysRevLett.50.153