Realization of optical carpets in the Talbot and Talbot-Lau configurations
نویسندگان
چکیده
منابع مشابه
Realization of optical carpets in the Talbot and Talbot-Lau configurations.
Talbot and Talbot-Lau effects are frequently used in lensless imaging applications with light, ultrasound, x-rays, atoms and molecules--generally in situations where refractive optical elements are non-existent or not suitable. We here show an experimental visualization of the intriguing wave patterns that are associated with near-field interferometry behind a single periodic diffraction gratin...
متن کاملLocal observation of plasmon focusingin Talbot carpets.
We present a detailed experimental and theoretical study of plasmon Talbot effect. A theoretical model based on simple scattering theory is developed to describe the Talbot self-imaging pattern generated by a linear arrangement of cylindrical nanostructures forming a periodic array. We first show the experimental observation of plasmon Talbot carpets created by propagating surface plasmon polar...
متن کاملPhase anomalies in Talbot light carpets of self-images.
An interesting feature of light fields is a phase anomaly, which occurs on the optical axis when light is converging as in a focal spot. Since in Talbot images the light is periodically confined in both transverse and axial directions, it remains an open question whether at all and to which extent the phase in the Talbot images sustains an analogous phase anomaly. Here, we investigate experimen...
متن کاملA Kapitza–Dirac–Talbot–Lau interferometer for highly polarizable molecules
STEFAN GERLICH1, LUCIA HACKERMÜLLER1*, KLAUS HORNBERGER2, ALEXANDER STIBOR1, HENDRIK ULBRICHT1, MICHAEL GRING1, FABIENNE GOLDFARB1‡, TIM SAVAS3, MARCEL MÜRI4, MARCEL MAYOR4,5 AND MARKUS ARNDT1 Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090 Wien, Austria Arnold Sommerfeld Center for Theoretical Physics, Ludwig-Maximilians-Universität München, Theresienstrasse 37, 80333 Münche...
متن کاملPolychromatic Maximum Likelihood Reconstruction for Talbot-Lau X-ray Tomography
Compared to conventional attenuation imaging, Talbot-Lau X-ray grating interferometry applied within a polychromatic setup suffers from additional artifacts. Among those are beam hardening and dispersion effects due to the complex coupling of different physical effects involved in the image formation process. In computed tomography these effects lead to image degradation, such as cupping and st...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2009
ISSN: 1094-4087
DOI: 10.1364/oe.17.020966