scholarly journals Unibody microscope objective tipped with a microsphere: design, fabrication, and application in subwavelength imaging

2020 ◽  
Vol 59 (8) ◽  
pp. 2641 ◽  
Author(s):  
Bing Yan ◽  
Yang Song ◽  
Xibin Yang ◽  
Daxi Xiong ◽  
Zengbo Wang
Author(s):  
R.A. Ploc

The optic axis of an electron microscope objective lens is usually assumed to be straight and co-linear with the mechanical center. No reason exists to assume such perfection and, indeed, simple reasoning suggests that it is a complicated curve. A current centered objective lens with a non-linear optic axis when used in conjunction with other lenses, leads to serious image errors if the nature of the specimen is such as to produce intense inelastic scattering.


2008 ◽  
Author(s):  
Kevin J. Webb ◽  
Huikan Liu ◽  
Alon Ludwig ◽  
S. Schivanand

2009 ◽  
Author(s):  
Pantazis Mouroulis ◽  
Byron E. van Gorp ◽  
Holly A. Bender ◽  
Eric E. Bloemhof ◽  
Julia Nichols ◽  
...  

Author(s):  
Nathaniel Tamminga ◽  
Brianna Christensen ◽  
Sarah Petry ◽  
Enson Chang

A promising chipless RFID approach uses millimeter-wave synthetic aperture radar (SAR) to image metal ink-printed ID tags from a meter or more away. Due to printing cost, it is desirable to minimize the size and spacing of metal patches within a tag, preferably into the subwavelength regime. Although circular SAR (CSAR) has a sharply peaked point response in 2D, its side lobes of closely-spaced targets interfere strongly with each other to distort the image. An alternative 2D subwavelength imaging approach with minimal side lobes is Time-Reversal MUSIC (TR-MUSIC). Traditional TR-MUSIC, however, requires a large number of transmitters and receivers. We propose a hybrid synthetic aperture TR-MUSIC algorithm (SATR-MUSIC) that combines the benefits of both approaches. Using relatively few transceivers, SATR-MUSIC is able to resolve objects separated by approximately  in 2D with minimal background artifacts. It does so by averaging TR-MUSIC’s imaging kernel incoherently over the synthetic aperture.


2008 ◽  
Vol 104 (10) ◽  
pp. 103109 ◽  
Author(s):  
Stanislav Maslovski ◽  
Pekka Alitalo ◽  
Sergei Tretyakov

2007 ◽  
Vol 56 (10) ◽  
pp. 6075
Author(s):  
Zhang Jin-Long ◽  
Liu Xu ◽  
Li Yi-Yu ◽  
Li Ming-Yu ◽  
Gu Pei-Fu

2020 ◽  
Vol 20 (3) ◽  
pp. 355-360
Author(s):  
Michal Peković ◽  
Hana Jirková ◽  
Kateřina Rubešová ◽  
Tomáš Janda ◽  
Radovan Bureš

2020 ◽  
Vol 28 (8) ◽  
pp. 11106 ◽  
Author(s):  
I. H. A. Knottnerus ◽  
S. Pyatchenkov ◽  
O. Onishchenko ◽  
A. Urech ◽  
F. Schreck ◽  
...  
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