公开(公告)号：US20140091240A1

公开(公告)日：2014-04-03

申请号：US13648697

申请日：2012-10-10

Applicant: NKT PHOTONICS A/S

Inventor： Carsten L. THOMSEN ,  Frederik Donbaek NIELSEN ,  Sascha HAUSER ,  Eberhard RIEDLE ,  Maximilian BRADLER

IPC: G01N21/00

CPC classification number: G01N21/00 ,  G01N21/255 ,  G02F1/3501 ,  G02F2001/3528 ,  H01S3/09

Abstract: The disclosure relates to a tunable optical light source spanning the UV-range and possible also the visible and near-IR wavelengths. The tunable optical light source includes an input light source, a focusing element, a non-linear crystal arranged to convert the frequency of at least part of the output spectrum of the super continuum source, and a holding unit for the non-linear crystal. The input light source is a super continuum light source with a spectral bandwidth of at least about 300 nm and the holding unit is adjustable for changing the frequency converted output wavelength of the non-linear crystal wfc such that the lowest obtainable output wavelength wUV of said tunable light source is ultraviolet. The disclosure further relates to an illumination source and an optical measurement system.

Abstract translation: 本公开涉及跨越UV范围的可调谐光学光源以及可能的和近红外波长的可能的光学光源。 可调谐光源包括输入光源，聚焦元件，布置成转换超连续体源的输出光谱的至少一部分的频率的非线性晶体，以及用于非线性晶体的保持单元。 输入光源是具有至少约300nm的光谱带宽的超连续光源，并且保持单元可调节以改变非线性晶体wfc的频率转换输出波长，使得所述的非线性晶体wfc的最低可获得输出波长wUV 可调光源是紫外线。 本公开还涉及照明源和光学测量系统。