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10.3390/ma7042593 http://scihub22266oqcxt.onion/10.3390/ma7042593 C5453336!5453336 !28788585     free     free     free Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 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\28788585 .jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117       Materials+(Basel) 2014 ; 7 (4 ): 2593-2604 Nephropedia Template TP {{tp|p=28788585 |t=2014. Liquid Crystal Lensacons, Logarithmic and Linear Axicons |pdf=|usr=}}{{28788585 }} gab.com Text Liquid Crystal Lensacons, Logarithmic and Linear Axicons JO: Materials (Basel) http://www.kidney.de/pget.php?&tw=1&pmid=28788585 #FOAvip Until now, several attempts have been made to obtain axicons by using liquid crystals. Previous results had always a considerable deviation from the linear response and the resulting aperture is square. In addition, classical fabrications methods are expensive and only produce fixed phase profiles. In this study, a novel structure to obtain tunable axicons with a perfect conical shape and a circular aperture is proposed and theoretically studied. The proposed optical device is based on nematic liquid crystal and phase shifted electrical signals. A simulation program consisted of Finite Elements Method to solve the voltage distribution combined with the Frank-Oseen equation to solve the molecular position of the nematic liquid crystal is employed. This device is totally reconfigurable by using low voltage signals. The focus depth and the position of this one can be controlled electrically. Twit Text FOAVip Liquid Crystal Lensacons, Logarithmic and Linear Axicons ????Materials (Basel) http://www.kidney.de/pget.php?&tw=1&pmid=28788585 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=28788585 #FOAvip English Wikipedia <ref>{{Cite pmid|28788585 }}</ref> Liquid Crystal Lensacons, Logarithmic and Linear Axicons #MMPMID28788585 Algorri JF ; Urruchi V ; García-Cámara B ; Sánchez-Pena JM Materials (Basel) 2014[Mar]; 7 (4 ): 2593-2604 PMID28788585 show ga Until now, several attempts have been made to obtain axicons by using liquid crystals. Previous results had always a considerable deviation from the linear response and the resulting aperture is square. In addition, classical fabrications methods are expensive and only produce fixed phase profiles. In this study, a novel structure to obtain tunable axicons with a perfect conical shape and a circular aperture is proposed and theoretically studied. The proposed optical device is based on nematic liquid crystal and phase shifted electrical signals. A simulation program consisted of Finite Elements Method to solve the voltage distribution combined with the Frank-Oseen equation to solve the molecular position of the nematic liquid crystal is employed. This device is totally reconfigurable by using low voltage signals. The focus depth and the position of this one can be controlled electrically. äLiquid Crystal Lensacons, Logarithmic and Linear Axicons (epmc).pdf DeepDyve Pubget Overpricing