EntityQ649739· pop 7· linked from 7 articlesSmith–Purcell effectSign in to savethe precursor of the free-electron laserConnectionslightEntityelectronEntityelectromagnetic radiationEntitydigital object identifierEntityInternational Standard Serial NumberEntityCoulomb's lawEntityEdward Mills PurcellEntityparticle acceleratorEntityQ180686EntitybibcodeEntityQ118398EntityCherenkov radiationEntityQ229883Entitysynchrotron radiationEntitybremsstrahlungEntityradio frequencyEntitydiffraction gratingEntityterahertz radiationEntityX-ray tubeEntityQ22908627EntityCategoriesQuantum optics