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典型文献
Lock-in incoherent differential phase contrast imaging
文献摘要:
We introduce a lock-in method to increase the phase contrast in incoherent differential phase contrast(DPC)imaging.This method improves the phase sensitivity by the analog removal of the background.The use of a smart pixel detector with in-pixel signal demodulation,paired with synchronized switching illumination,provides the basis of a bit-efficient approach to emulate a lock-in DPC.The experiments show an increased sensitivity by a factor of up to 8,as expected from theory,and a reduction of collected data by a factor of 70,for equivalent standard DPC measurements;single-shot sensitivity of 0.7 mrad at a frame rate of 1400 frames per second is demonstrated.This new approach may open the way for the use of incoherent phase microscopy in biological applications where extreme phase sensitivity and millisecond response time are required.
文献关键词:
作者姓名:
CHIARA BONATI;DAMIEN LOTERIE;TIMOTHé LAFOREST;CHRISTOPHE MOSER
作者机构:
Laboratory of Applied Photonics Devices,School of Engineering,Ecole Polytechnique Fédérale de Lausanne,1015 Lausanne,Switzerland
引用格式:
[1]CHIARA BONATI;DAMIEN LOTERIE;TIMOTHé LAFOREST;CHRISTOPHE MOSER-.Lock-in incoherent differential phase contrast imaging)[J].光子学研究(英文),2022(01):237-247
A类:
B类:
Lock,incoherent,differential,phase,contrast,imaging,We,introduce,lock,method,DPC,This,improves,sensitivity,by,analog,removal,background,use,smart,pixel,detector,signal,demodulation,paired,synchronized,switching,illumination,provides,basis,bit,efficient,approach,emulate,experiments,show,increased,up,expected,from,theory,reduction,collected,data,equivalent,standard,measurements,single,shot,mrad,frames,demonstrated,new,may,open,way,microscopy,biological,applications,where,extreme,millisecond,response,are,required
AB值:
0.587382
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