  We demonstrate single-pixel imaging in the spectral domain by encoding
Fourier probe patterns onto the spectrum of a superluminescent laser diode
using a programmable optical filter. As a proof-of-concept, we measure the
wavelength-dependent transmission of a Michelson interferometer and a
wavelength-division multiplexer. Our results open new perspectives for remote
broadband measurements with possible applications in industrial, biological or
security applications.
