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Article
Optical Coherence Tomography Premiere in Korea
Optical Coherence Tomography (OCT) is considered as fundamentally new image modality having advantages such as high-speed, real-time cross sectional imaging with non-invasive in vivo investigation of biological t...
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Article
Spectral Filtering in OCT System Implemented by Mechanically Induced Long-Period Fiber Grating
A spectral filtering method that can enhance the axial resolution and suppress sidelobes of the point spread function in Optical Coherence Tomography (OCT) system is demonstrated. A mechanically induced long-p...
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Article
Optical Coherence Tomography Implemented by Photonic Crystal Fiber
We report a photonic crystal fiber (PCF)-based optical coherence tomography (OCT) system, in which conventional single-mode fiber for the transmission line and the fiber coupler for the beam splitter/combiner ...
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Article
Advantages of Adaptive Speckle Filtering Prior to Application of Iterative Deconvolution Methods for Optical Coherent Tomography Imaging
The axial resolution of optical coherence tomography (OCT) is closely related to the light source spectrum width. Unfortunately, most basic sources providing the required power for decent OCT image have narrow...
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Article
Strained Chirped Fiber Bragg Gratings Based all-fiber Variable Optical Delay Line for Optical Coherence Tomography
We present the novel all-fiber optical delay line that can be realized by exploiting the fundamental distributive reflection characteristics of a chirped fiber Bragg gratings (CFBG). With the assist of a strai...
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Chapter and Conference Paper
Evaluation of Periodontal Ligament under Orthodontic Force by using Optical Coherence Tomography
The changes of the periodontal ligament according to orthodontic forces were evaluated by using optical coherence tomography. We have imaged periodontal ligament spaces of mandibular teeth both in a human dry ...
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Article
Optical approach for monitoring the periodontal ligament changes induced by orthodontic forces around maxillary anterior teeth of white rats
Structural variations of the periodontal ligament (PDL) induced by orthodontic forces have been evaluated by optical coherence tomography (OCT) and compared to images obtained by conventional radiography. Here...
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Article
Tomographic imaging of incipient dental-caries using optical coherence tomography and comparison with various modalities
We present the optical coherence tomography (OCT) made to investigate the early dental caries in human teeth and compare its results with those taken by conventional imaging modalities including light illumina...
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Article
Improvement in electrical properties of sol–gel-derived In-doped ZnO thin film by electron beam treatment
In-doped ZnO thin films were prepared by a sol–gel spin coating method. Since several issues with In do** have been reported, such as degradation of crystallinity and deterioration of electrical resistivity...
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Article
Investigation of a broadband coherent perfect absorber in a multi-layer structure by using the transfer matrix method
We investigated a multi-layer structure for a broadband coherent perfect absorber (CPA). The transfer matrix method (TMM) is useful for analyzing the optical properties of structures and optimizing multi-layer...
