| abstract |
WHEN SUFFICIENT REFLECTIVITY AND LOW ABSORBENT POWER ARE PROVIDED TO ITS DIHEDRAL OF REFLECTING SURFACES, A CORNER OF A FIZEAU CAN ACT AS A DIRECTIONAL OPTICAL REFLECTOR, PROVIDING ON THE ONE HAND, IN A FIRST DIRECTION, A NARROW BAND OF LONG, AND ON THE OTHER HAND THE REST OF THE INCIDENT WAVELENGTHS, IN ANOTHER DIRECTION. A LASER WITH COLORING COLOR CAN THEN BE DEFINED BY THE CORNER OF FIZEAU CF AND AN OUTPUT MIRROR M, WITH THE INTERPOSITION OF TWO DIAPHRAGMS D. THE AGREEMENT, VARIABLE BY TRANSLATION OF THE CORNER OF THE FIZEAU IN ITS PLANE, CONCERNS EITHER A NARROW SLOT, EITHER A NARROW HOLE IN A LARGE BAND. SEVERAL RAYS MAY ALSO BE GRANTED SEPARATELY. |