Visible-light Metalens Far-field Nanofocusing Effects with Active Tuning of Focus based on MIM Subwavelength Structures Used in Integrated Imaging Array

2022 ◽  
Author(s):  
Yang Meng ◽  
Yan Lyu ◽  
Zhongyuan Yu ◽  
Laurence Chen ◽  
Hongen Liao
Keyword(s):  
Visible Light ◽  
Subwavelength Structures ◽  
Far Field ◽  
Imaging Array

Light Induced Ferroelectric Domain Nucleation in LiNbO3 Crystal

2009 ◽  
Vol 79-82 ◽  
pp. 1383-1386
Author(s):  
Yun Lin Chen ◽  
Hai Wei Li ◽  
Yuan An Li
Keyword(s):  
Light Intensity ◽  
Lithium Niobate ◽  
Visible Light ◽  
Lithium Niobate Crystal ◽  
Ferroelectric Domain ◽  
Light Diffraction ◽  
Far Field ◽  
Light Wavelength ◽  
Irradiation Intensity ◽  
Diffraction Patterns

Using the tightly focused visible light (wavelength λ=488nm) illuminating, the ferroelectric domain patterns of the undoped lithium niobate crystal have been demonstrated. The influence of the visible light intensity on the domain nucleation field was investigated. The reduction of nucleation field decreases exponentially with increasing incident irradiation intensity. Once a domain is nucleated it can be dictated by the far-field light diffraction patterns. An assumption is proposed that the reduction of nucleation field is directly related to the defects mobility and structure of the crystals.

Far-Field Nanodiagnostics of Solids with Visible Light by Spectrally Selective Imaging

2009 ◽  
Vol 48 (51) ◽  
pp. 9747-9750 ◽  
Author(s):  
Andrei V. Naumov ◽  
Alexey A. Gorshelev ◽  
Yury G. Vainer ◽  
Lothar Kador ◽  
Jürgen Köhler
Keyword(s):  
Visible Light ◽  
Far Field ◽  
Spectrally Selective

Near-infrared Plasmonic Far-field Nanofocusing Effects with Elongated Depth of Focus based on Hybrid Au–Dielectric–Ag Subwavelength Structures

Plasmonics ◽  
2016 ◽  
Vol 11 (5) ◽  
pp. 1219-1231 ◽  
Author(s):  
Pengfei Cao ◽  
Lin Cheng ◽  
Xiaoping Zhang ◽  
Xuelin Huang ◽  
Hongmei Jiang
Keyword(s):  
Near Infrared ◽  
Subwavelength Structures ◽  
Far Field ◽  
Depth Of Focus

Achieving Invisibility in the Far Field with a 3D Carpet Cloak Design for Visible Light

2018 ◽  
Author(s):  
Daniely G. Silva ◽  
Poliane A. Teixeira ◽  
Lucas H. Gabrielli ◽  
Mateus A. F. C. Junqueira ◽  
Danilo H. Spadoti
Keyword(s):  
Visible Light ◽  
Far Field

scholarly journals Inside Cover: Far-Field Nanodiagnostics of Solids with Visible Light by Spectrally Selective Imaging (Angew. Chem. Int. Ed. 51/2009)

2009 ◽  
Vol 48 (51) ◽  
pp. 9568-9568
Author(s):  
Andrei V. Naumov ◽  
Alexey A. Gorshelev ◽  
Yury G. Vainer ◽  
Lothar Kador ◽  
Jürgen Köhler
Keyword(s):  
Visible Light ◽  
Far Field ◽  
Spectrally Selective

Mask-assisted deterministic phase–amplitude retrieval from a single far-field intensity diffraction pattern: Two experimental proofs of principle using visible light

2011 ◽  
Vol 111 (7) ◽  
pp. 782-787 ◽  
Author(s):  
Sergey G. Podorov ◽  
Alexis I. Bishop ◽  
David M. Paganin ◽  
Konstantin M. Pavlov
Keyword(s):  
Visible Light ◽  
Diffraction Pattern ◽  
Field Intensity ◽  
Far Field ◽  
Phase Amplitude

scholarly journals Optical detection of single transparent nanoparticles

2018 ◽  
Vol 190 ◽  
pp. 03014
Author(s):  
Yuri Vainer ◽  
Alexander Zybin ◽  
Nikolay Gippius ◽  
Anastasia Malek
Keyword(s):  
Refractive Index ◽  
Visible Light ◽  
Optical Microscopy ◽  
Extracellular Vesicles ◽  
Optical Detection ◽  
Polymer Nanoparticles ◽  
Far Field ◽  
The Novel ◽  
Biological Origin ◽  
Microscopy Technique

We will present the novel experimental far-field optical microscopy technique for detection of single nanoparticles, which weakly absorb a visible light and are characterized by refractive index close to its value in nearby environment (including particles of organic and biological origin: polymer nanoparticles, microand extracellular vesicles, liposomes, viruses etc).

scholarly journals Surface Wave Generation and Propagation on Metallic Subwavelength Structures Measured by Far-Field Interferometry

2006 ◽  
Vol 96 (21) ◽  
Author(s):  
G. Gay ◽  
O. Alloschery ◽  
B. Viaris de Lesegno ◽  
J. Weiner ◽  
H. J. Lezec
Keyword(s):  
Surface Wave ◽  
Wave Generation ◽  
Subwavelength Structures ◽  
Far Field

Possible applications of fraunhofer holography in high resolution electron microscopy

1978 ◽  
Vol 36 (1) ◽  
pp. 222-223 ◽  
Author(s):  
N. Bonnet ◽  
M. Troyon ◽  
P. Gallion
Keyword(s):  
Electron Microscopy ◽  
High Resolution ◽  
Transfer Function ◽  
Radiation Damage ◽  
High Resolution Electron Microscopy ◽  
Far Field ◽  
Field Region ◽  
Crystalline Materials ◽  
Resolution Electron ◽  
The Ideal

Two main problems in high resolution electron microscopy are first, the existence of gaps in the transfer function, and then the difficulty to find complex amplitude of the diffracted wawe from registered intensity. The solution of this second problem is in most cases only intended by the realization of several micrographs in different conditions (defocusing distance, illuminating angle, complementary objective apertures…) which can lead to severe problems of contamination or radiation damage for certain specimens.Fraunhofer holography can in principle solve both problems stated above (1,2). The microscope objective is strongly defocused (far-field region) so that the two diffracted beams do not interfere. The ideal transfer function after reconstruction is then unity and the twin image do not overlap on the reconstructed one.We show some applications of the method and results of preliminary tests.Possible application to the study of cavitiesSmall voids (or gas-filled bubbles) created by irradiation in crystalline materials can be observed near the Scherzer focus, but it is then difficult to extract other informations than the approximated size.

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