Mechanical Scan-Free Confocal Microscope by a Broadband Source and Two Balanced Wavelength-to-Space Transformations

A new approach for performing confocal microscopy without no mechanical scanners was reported by a broadband light source, two similar 2-D wavelength-dispersive optical elements, and an uncooled charge-coupled device (CCD). In the new approach, 2-D sample structures were simultaneously and instantly...

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Bibliographic Details
Published in:IEEE photonics journal 2015-02, Vol.7 (1), p.1-8
Main Authors: Wang, Hsien-Yi, Lin, Bor-Shyh, Lou, Chien-Ya, Chan, Ming-Che
Format: Article
Language:English
Subjects:
Broadband Source
Charge coupled devices
Confocal Microscope
Diffractive Optics
Gratings
Image resolution
Microscopy
Optical microscopy
Optical reflection
Wavelength Encoded
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Summary:A new approach for performing confocal microscopy without no mechanical scanners was reported by a broadband light source, two similar 2-D wavelength-dispersive optical elements, and an uncooled charge-coupled device (CCD). In the new approach, 2-D sample structures were simultaneously and instantly mapped into the CCD by performing two balanced wavelength-to-space transformations and one space-to-wavelength transformation. Compared with a traditional mechanical-scanner-based confocal microscope, no mechanical scanners or additional post data-processing were required in this new approach. The sectioned images are directly shown in the CCD. The demonstrated balanced wavelength-encoded confocal microscope has a simple configuration and shows great potential for high imaging speed. It has the advantage of miniaturized packaging and other applications outside of the laboratory as well.
ISSN:1943-0655
1943-0647
DOI:10.1109/JPHOT.2015.2390617