An atom-focusing mirror
نویسندگان
چکیده
منابع مشابه
Focusing a helium atom beam using a quantum-reflection mirror
We demonstrate one-dimensional (1D) focusing of a thermal helium atom beam by quantum reflection from a cylindrical concave quartz mirror at near-grazing incidence. The smallest width of the focus achieved is 1.8μm, essentially limited by spherical aberration. The various effects that contribute to the finite focal width have been investigated. We propose to apply near-grazing reflection from t...
متن کاملFlat Focusing Mirror
The control of spatial propagation properties of narrow light beams such as divergence, focusing or imaging are main objectives in optics and photonics. In this letter, we propose and demonstrate experimentally a flat focusing mirror, based on an especially designed dielectric structure without any optical axis. More generally, it also enables imaging any light pattern in reflection. The flat f...
متن کاملAn atom interferometer for measuring loss of coherence from an atom mirror
We describe an atom interferometer to study the coherence of atoms reflected from an evanescent wave mirror. The interferometer is sensitive to the loss of phase coherence induced by the defects in the mirror. The results are consistent with and complementary to recent measurements of specular reflection. PACS. 03.75.Be Atom and neutron optics – 03.75.Dg Atom and neutron interferometry – 39.20....
متن کاملPhotoacoustic microscopy by scanning mirror-based synthetic aperture focusing technique
Photoacoustic imaging with a synthetic aperture focusing technique (SAFT) is an effective method to improve the lateral resolution for out-of-focus regions in scanning microscopy systems, which commonly require a decent motorized scanning stage for a lateral scan of a transducer to obtain a cross-sectional image. In this study, we propose and test a photoacoustic imaging system with a scanning ...
متن کاملA time-reversal mirror with variable range focusing
Recently a time-reversal mirror ~or phase-conjugate array! was demonstrated experimentally in the ocean that spatially and temporally refocused an incident acoustic field back to the original position of the probe source @Kuperman et al., J. Acoust. Soc. Am. 103, 25–40 ~1998!#. Here this waveguide time-reversal mirror technique is extended to refocus at ranges other than that of the probe sourc...
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: Nature
سال: 1997
ISSN: 0028-0836,1476-4687
DOI: 10.1038/36769