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10.1038/srep42353 http://scihub22266oqcxt.onion/10.1038/srep42353 C5339709!5339709 !28266502     free     free     free Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\28266502 .jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117       Sci+Rep 2017 ; 7 (ä): 42353 Nephropedia Template TP {{tp|p=28266502 |t=2017. Design of a k-space spectrometer for ultra-broad waveband spectral domain optical coherence tomography |pdf=|usr=}}{{28266502 }} gab.com Text Design of a k-space spectrometer for ultra-broad waveband spectral domain optical coherence tomography JO: Sci Rep http://www.kidney.de/pget.php?&tw=1&pmid=28266502 #FOAvip Nonlinear sampling of the interferograms in wavenumber (k) space degrades the depth-dependent signal sensitivity in conventional spectral domain optical coherence tomography (SD-OCT). Here we report a linear-in-wavenumber (k-space) spectrometer for an ultra-broad bandwidth (760?nm-920?nm) SD-OCT, whereby a combination of a grating and a prism serves as the dispersion group. Quantitative ray tracing is applied to optimize the linearity and minimize the optical path differences for the dispersed wavenumbers. Zemax simulation is used to fit the point spread functions to the rectangular shape of the pixels of the line-scan camera and to improve the pixel sampling rates. An experimental SD-OCT is built to test and compare the performance of the k-space spectrometer with that of a conventional one. Design results demonstrate that this k-space spectrometer can reduce the nonlinearity error in k-space from 14.86% to 0.47% (by approximately 30 times) compared to the conventional spectrometer. The 95% confidence interval for RMS diameters is 5.48?±?1.76??m-significantly smaller than both the pixel size (14??m?×?28??m) and the Airy disc (25.82??m in diameter, calculated at the wavenumber of 7.548??m(-1)). Test results demonstrate that the fall-off curve from the k-space spectrometer exhibits much less decay (maximum as -5.20?dB) than the conventional spectrometer (maximum as -16.84?dB) over the whole imaging depth (2.2?mm). Twit Text FOAVip Design of a k-space spectrometer for ultra-broad waveband spectral domain optical coherence tomography ????Sci Rep http://www.kidney.de/pget.php?&tw=1&pmid=28266502 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=28266502 #FOAvip English Wikipedia <ref>{{Cite pmid|28266502 }}</ref> Design of a k-space spectrometer for ultra-broad waveband spectral domain optical coherence tomography #MMPMID28266502 Lan G ; Li G Sci Rep 2017[Mar]; 7 (ä): 42353 PMID28266502 show ga Nonlinear sampling of the interferograms in wavenumber (k) space degrades the depth-dependent signal sensitivity in conventional spectral domain optical coherence tomography (SD-OCT). Here we report a linear-in-wavenumber (k-space) spectrometer for an ultra-broad bandwidth (760?nm-920?nm) SD-OCT, whereby a combination of a grating and a prism serves as the dispersion group. Quantitative ray tracing is applied to optimize the linearity and minimize the optical path differences for the dispersed wavenumbers. Zemax simulation is used to fit the point spread functions to the rectangular shape of the pixels of the line-scan camera and to improve the pixel sampling rates. An experimental SD-OCT is built to test and compare the performance of the k-space spectrometer with that of a conventional one. Design results demonstrate that this k-space spectrometer can reduce the nonlinearity error in k-space from 14.86% to 0.47% (by approximately 30 times) compared to the conventional spectrometer. The 95% confidence interval for RMS diameters is 5.48?±?1.76??m-significantly smaller than both the pixel size (14??m?×?28??m) and the Airy disc (25.82??m in diameter, calculated at the wavenumber of 7.548??m(-1)). Test results demonstrate that the fall-off curve from the k-space spectrometer exhibits much less decay (maximum as -5.20?dB) than the conventional spectrometer (maximum as -16.84?dB) over the whole imaging depth (2.2?mm). |*Algorithms [MESH] |*Spectrum Analysis [MESH] |*Tomography, Optical Coherence [MESH] |Optical Phenomena [MESH]Design of a k-space spectrometer for ultra-broad waveband spectral dom(epmc).pdf DeepDyve Pubget Overpricing