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Priority claimed from US515973Aexternal-prioritypatent/US3414728A/en
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Publication of BE688141ApublicationCriticalpatent/BE688141A/xx
G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
G02F1/35—Non-linear optics
G02F1/39—Non-linear optics for parametric generation or amplification of light, infrared or ultraviolet waves