Terahertz research company T-Ray Science Inc. has granted a licensing agreement to !%Toptica Photonics Inc.%! of Victor, N.Y., a terahertz source supplier. Under terms of the agreement, T-Ray will collect royalties on US sales of Toptica’s terahertz standard package plus spectroscopy kit, which uses a coherent detection technique for continuous-wave terahertz signals. The former company’s platform terahertz imaging technology is anticipated to have many applications, including homeland security; the detection of explosives and ceramic knives; process control in the paper, plastics, petrochemical and pharmaceutical industries; and medical imaging for the detection of skin and other cancers.