Results 121 to 130 of about 3,149 (205)

Three-dimensional polarimetric ptychography

Optics Express
A three-dimensional polarimetric ptychography (3D-PP) technique is proposed to reconstruct the residual stress distribution in optical elements in three dimensions by combining polarization imaging and a 3D ptychographic iterative engine (3D-PIE).
Chengcheng Chang, Hua Tao, Tonglu Xing, Qiang Lin, Huiling Huang, Liqing Wu, Xiaoliang He, Guowen Zhang, Cheng Liu, Jianqiang Zhu   +9 more
openaire   +2 more sources

Adaptive multi-beam X-ray ptychography

Ptychography has evolved as an important method for nanoscale X-ray imaging with synchrotron radiation. Recently, it has been proposed to work with multiple beams in parallel.
Kahnt, Maik, Johansson, Ulf,, Vogt, Ulrich, Johansson, Ulf, Kahnt, Maik,, Åstrand, Mattias, Vogt, Ulrich,, Lund University., Åstrand, Mattias,   +8 more
core   +1 more source

Sampling requirements in near-field ptychography [PDF]

Ptychography is a robust lensless form of microscopy routinely used for applications spanning life and physical sciences. The most common ptychography setup consists in using a detector to record diffraction patterns in the far-field.
Chaulagain, Uddhab, Nejdl, Jaroslav, Angelov, Borislav, Batey, Darren J, Parkman, Tomáš, Armstrong, Chris, Pulnova, Yelyzaveta, Baranová, Iuliia, Cipiccia, Silvia, Fratini, Michela, Fardin, Luca, Fourmaux, Sylvain, Olivo, Alessandro   +12 more
core   +2 more sources

Direct coupling of tomography and ptychography

Optics Letters, 2017
A generalization of the ptychographic phase problem is presented for recovering refractive properties of a three-dimensional object in a tomography setting. This approach, which ignores the lateral overlapping probe requirements in existing ptychography algorithms, can enable the reconstruction of objects using highly flexible acquisition patterns and ...
openaire   +2 more sources

Time-domain vector ptychography

Optics Express
We demonstrate the reconstruction of the instantaneous polarization state of ultrafast laser pulses through vectorial time-domain ptychography. We introduce the formalism, investigate the algorithm’s capacities through simulations, and finally validate it by reconstructing several polarization states from experiments.
T. Schweizer, H. M. Frey, E. Rohwer, T. Feurer   +3 more
openaire   +2 more sources

XRM2024 - Wed08K - 'Stereoscopic hard X-ray ptychography'

Hard X-ray ptychography is often the method of choice for X-ray imaging with highest spatial resolution because of its high penetration power and versatility.
Schropp, Andreas, Koziej, Dorota, Carus, Caterina, Stachnik, Karolina, Hagemann, Johannes, Schroer, Christian G., Röper, Sina, Hussak, Sarah-Alexandra, Vogt, Ulrich, Seyrich, Martin, Åstrand, Mattias   +10 more
core   +1 more source

Wavefront and nanostructure characterisation with X-ray ptychography [PDF]

, 2018
X-ray ptychography is a scanning diffraction microscopy technique suited for the phase-sensitive investigation of wavefronts and specimens. It returns complex-valued wave functions and transmission functions producing high-resolution (nanoscale) phase ...
Sala, Simone
core  

Annulus fracture underlies radiation-induced sperm dysfunction revealed by multimodal nano-imaging. [PDF]

Life Sci Alliance
Chen N, Chen H, Xiao J, He B, Zhang D, Yuan X, Wen P, Jiang H.   +7 more
europepmc   +1 more source

Electron ptychography reveals correlated lattice vibrations at atomic resolution. [PDF]

Nat Commun
Gladyshev A, Haas B, Pekin TC, Boland TM, Schloz M, Rez P, Koch CT.   +6 more
europepmc   +1 more source

Hard x-ray stereo ptychography with multislicing

Our newly developed technique of stereoscopic ptychography allows us to scan the sample simultaneously with two nanofocused x-ray beams at different angles. The stereoscopic views can, similar to human vision, considerably improve the in-depth perception
Hussak Sarah-Alexandra, Koziej, Dorota, Carus, Caterina, Schropp, Andreas, Stachnik, Karolina, Hagemann, Johannes, Röper, Sina, Vogt, Ulrich, Seyrich, Martin, Schroer, Christian, Åstrand, Mattias, Dora, Johannes   +11 more
core