scholarly journals Multichannel near-field nanoscopy of circular and linear dichroism at the solid-state

2016 ◽  
Author(s):  
G. Lazzini ◽  
M. Castriciano ◽  
M. Trapani ◽  
N. Micali ◽  
F. Tantussi ◽  
...  
Keyword(s):  
Solid State ◽  
Near Field ◽  
Linear Dichroism

IEA 4E SSL ANNEX INTERLABORATORY COMPARISON OF GONIOPHOTOMETERS MEASURING SOLID STATE LIGHTING PRODUCTS – RESULTS

2021 ◽  
Author(s):  
Y. Ohno ◽  
G. Zissis ◽  
J. Gaudemer ◽  
J. Dubard ◽  
J.S. Oh ◽  
...  
Keyword(s):  
Solid State ◽  
Interlaboratory Comparison ◽  
Near Field ◽  
International Energy Agency ◽  
Cone Angle ◽  
Luminous Flux ◽  
Test Method ◽  
Solid State Lighting ◽  
Energy Agency ◽  
Field Type

The global interlaboratory comparison (IC 2017) on measurements of solid-state lighting (SSL) products with goniophotometers was conducted under the International Energy Agency 4E Solid State Lighting Annex with 36 participating laboratories from 19 countries with a total of 42 goniophotometric instruments including mirror-type, near-field type and source-rotating type goniophotometers. A narrow-beam LED lamp and three different types of LED luminaires, including a street lighting luminaire, were used as comparison artefacts for measurements of 16 different quantities. These included electrical, photometric, and colorimetric quantities, and goniophotometric quantities such as centre beam intensity, beam angle, partial flux (15° cone angle), and angular colour uniformity. CIE S 025 was used as the test method. The results demonstrated overall good agreement on luminous flux and colour quantities, however, larger variations and various problems were identified in goniophotometric quantity results. Near-field type and source-rotating type goniophotometers showed equivalent accuracies overall to those of far-field mirror type goniophotometers.

scholarly journals Noninvasive Imaging Method of Microwave Near Field Based on Solid-State Quantum Sensing

2018 ◽  
Vol 66 (5) ◽  
pp. 2276-2283 ◽  
Author(s):  
Bo Yang ◽  
Yue Dong ◽  
Zhen-Zhong Hu ◽  
Guo-Quan Liu ◽  
Yong-Jin Wang ◽  
...  
Keyword(s):  
Solid State ◽  
Near Field ◽  
Noninvasive Imaging ◽  
Imaging Method ◽  
Quantum Sensing

Fluorescence detected linear dichroism of small molecules oriented on polyethylene film

The Analyst ◽  
2018 ◽  
Vol 143 (23) ◽  
pp. 5805-5811
Author(s):  
A. M. Wemyss ◽  
K. Razmkhah ◽  
N. P. Chmel ◽  
A. Rodger
Keyword(s):  
Solid State ◽  
Small Molecules ◽  
Fluorescence Emission ◽  
Linear Dichroism ◽  
Polyethylene Film ◽  
Emission Data ◽  
Additional Information ◽  
Oriented Molecules

We demonstrate that by measuring the fluorescence emission data during a linear dichroism measurement, one obtains additional information on the exited state properties and interactions of oriented molecules in the solid state.

scholarly journals On the theory of spatial photon localization: Fundamentals and the role of near-field plasma screening

2006 ◽  
Vol 24 (1) ◽  
pp. 61-70 ◽  
Author(s):  
OLE KELLER
Keyword(s):  
Solid State ◽  
Rotational Symmetry ◽  
Near Field ◽  
Photon Emission ◽  
Classical Electrodynamics ◽  
Photon Propagator ◽  
Plasma Screening ◽  
Rigorous Description ◽  
Excitation Processes ◽  
Photon Localization

Starting from the Riemann-Silberstein formulation of classical electrodynamics the Schrödinger equation for the photon energy wave function is discussed. Hereafter, a propagator description of the space-time emission of a polychromatic photon from an atom is presented, paying particular attention to the near-field electrodynamics. When the atom is embedded in a solid-state plasma the photon emission process can be dramatically modified. Limiting the analyses to solid-state plasmas exhibiting translational and rotational symmetry, the near-field atom-photon-plasma interaction is studied paying particular attention to the plasmariton and plasmon excitation processes. It is shown that the transverse and longitudinal parts of the plasma-screened field propagator link in a direct manner to the free-photon propagator and the longitudinal near-field photon propagator. The necessity of keeping both the transverse and longitudinal parts of the plasma screening in a rigorous description of near-field electrodynamics is demonstrated.

scholarly journals Quantitative relation between "defects" distribution on optics and near-field quality in high power solid-state laser system

2011 ◽  
Vol 60 (2) ◽  
pp. 024202
Author(s):  
Zhou Li-Dan ◽  
Su Jing-Qin ◽  
Li Ping ◽  
Wang Wen-Yi ◽  
Liu Lan-Qin ◽  
...  
Keyword(s):  
Solid State ◽  
High Power ◽  
Near Field ◽  
Laser System ◽  
Solid State Laser ◽  
Quantitative Relation ◽  
State Laser ◽  
Field Quality

Tip/sample interactions, contrast, and near-field microscopy of biological and solid-state samples

1993 ◽  
Author(s):  
Steven Smith ◽  
Eric E. Monson ◽  
Greg Merritt ◽  
Weihong Tan ◽  
D. Birnbaum ◽  
...  
Keyword(s):  
Solid State ◽  
Near Field
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