NONLINEAR OPTICAL MICROSCOPE

• Main Authors: OIDE TAKAHIRO, NAKAI JUNICHI
• Format: Patent
• Language: English
• Published: 20.03.2014
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PROBLEM TO BE SOLVED: To provide a nonlinear optical microscope capable of performing focus adjustment of a laser beam rapidly without causing vibration.SOLUTION: A laser beam B emitted from a laser light source 2 passes through beam expanders 3 and 4 so as to be incident on a first KTN module 7, and passes through relay lenses 8 and 9 and a half wavelength plate 10 so as to be incident on a second KTN module 11. At this time, applied voltages to the first KTN module 7 and the second KTN module 11 are controlled, and condensation is performed by condenser lenses 13 and 17, so that focus adjustment in an optical axis direction is performed and a primary condensing point is moved to a position 61a or a position 61b. The laser beam B subjected to primary condensation passes through a tube lens 23, and then a focus position is adjusted to a position 62a or a position 62b by an objective lens 25 with a fixed position.