| 摘要 |
PROBLEM TO BE SOLVED: To overcome a defect of low coherence interference measurement and the serviceability and scanning speed of the light source of optical coherent tomography.SOLUTION: This apparatus includes at least one first arrangement for providing not only at least one first electromagnetic radiation to a sample 86 but also at least one second electromagnetic radiation to a reference 82, at least one second arrangement constituted to change the frequency of at least one of the first and second electromagnetic radiations to at least partially reduce, shift the frequency of at least one of the first and second electromagnetic radiations, divide or eliminate the negative frequency component of the interference, an interferometer for allowing the first and second electromagnetic radiations to interfere with each other to form an interference signal and at least one third arrangement for detecting the interference between the first and second electromagnetic radiations. |
