Binary-phase spatial filter for real-time swept-source optical coherence microscopy
We report a novel scheme to optimize the focusing condition for real-time, swept-source optical coherence microscopy. The axial and lateral behaviors of four-zone binary-phase spatial filters are presented numerically. A nearly constant axial intensity distribution along an extended depth of focus o...
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| Veröffentlicht in: | Optics letters 2007-08, Vol.32 (16), p.2375-2377 |
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| container_title | Optics letters |
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| creator | LINBO LIU CHENG LIU WONG CHEE HOWE SHEPPARD, C. J. R NANGUANG CHEN |
| description | We report a novel scheme to optimize the focusing condition for real-time, swept-source optical coherence microscopy. The axial and lateral behaviors of four-zone binary-phase spatial filters are presented numerically. A nearly constant axial intensity distribution along an extended depth of focus of 1.5 mm and a lateral resolution of 5 microm are experimentally verified. The A-line scan rate is up to 16 kHz, yielding a frame rate of 25 Hz and 640 lines per image. |
| doi_str_mv | 10.1364/OL.32.002375 |
| format | Article |
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| ispartof | Optics letters, 2007-08, Vol.32 (16), p.2375-2377 |
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| language | eng |
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| source | Optica Publishing Group Journals |
| subjects | Biological and medical sciences Exact sciences and technology Filters, zone plates, and polarizers Fundamental and applied biological sciences. Psychology Fundamental areas of phenomenology (including applications) General aspects, investigation technics, apparatus Image reconstruction tomography Imaging and optical processing Optical elements, devices, and systems Optics Physics Tissues, organs and organisms biophysics |
| title | Binary-phase spatial filter for real-time swept-source optical coherence microscopy |
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