title: Electro-optic detection of continuous-wave mid-infrared radiation.
abstract: We demonstrate coherent detection of continuous-wave mid-infrared radiation. This radiation is produced by use of conventional difference-frequency mixing and detected via the linear electro-optic effect. The detection process allows for the simultaneous measurement of the amplitude and phase properties of the infrared field. Both processes require an amplitude-modulated optical beam that is derived from the superimposed output of two single-frequency lasers. With appropriate choice of lasers and nonlinear optical crystals, the technique may be applied to any wavelength throughout the far and mid infrared.
authors.forename: Hua
authors.initials: H
authors.lastname: Cao
authors.forename: Ajay
authors.initials: A
authors.lastname: Nahata