@article{5647,
  author = {E. R. Eliel and E. W. M. van der Ham and Q. H. F. Vrehen and M. Barmentlo and G. W. Thooft and A. F. G. van der Meer and P. W. van Amersfoort},
  title = {Nonlinear Optics with a Free-Electron Laser},
  abstract = {We report on an experiment on spectroscopic infrared-visible Sum-Frequency Generation (SFG) with a Free-Electron Laser (FEL) as the IR-source. The SFG spectrum of gallium phosphide has been investigated in detail in an experiment covering the unsurpassed spectral range from 20 to 32 mum. This experiment demonstrates how the recent accessibility of FELs as truly widely tunable sources of coherent radiation can impact a well-established discipline.},
  year = {1994},
  journal = {Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment},
  volume = {341},
  number = {1-3},
  pages = {152-155},
  month = {Mar 1},
  isbn = {0168-9002},
  doi = {10.1016/0168-9002(94)90337-9},
  language = {eng},
}