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confocal resonator |
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confocal resonator [kän′fō·kəl ′rez·ən‚ād·ər]
(electromagnetism) A wavemeter for millimeter wavelengths, consisting of two spherical mirrors facing each other; changing the spacing between the mirrors affects propagation of electromagnetic energy between them, permitting direct measurement of free-space wavelength. (optics) A beam resonator that consists of a pair of spherical mirrors which have the same axis of rotational symmetry and are positioned so that their focal points coincide on this axis. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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