Results 81 to 90 of about 28,756 (270)

Simultaneous Visualization of a Paraelectric Mn:KNTN Crystal and Measurement of Its Kerr Coefficient by Digital Holographic Interferometry

open access: yesIEEE Photonics Journal, 2014
A method of visualizing a paraelectric Mn:KNTN crystal and measuring its Kerr electrooptic coefficient by digital holographic interferometry is presented. Digital holograms of the crystal with different voltages are recorded; a series of sequential phase
Lu Qieni   +3 more
doaj   +1 more source

IoT Technology as an Effective Strategy Enhances Food Authentication for Current Fresh Fruit Supply Chain

open access: yesFuture Postharvest and Food, Volume 2, Issue 3, Page 262-279, September 2025.
ABSTRACT With trade globalization, food fraud such as tampering, substituting, and falsifying, challenges human health and the management of food supply chain. As a food type that only processed at primary level, the authenticity of fruit supply information has become a guarantee for its edible safety.
Yiqin Zhang   +6 more
wiley   +1 more source

Imaging Gold Nanoparticles in Living Cells Environments using Heterodyne Digital Holographic Microscopy

open access: yes, 2009
This paper describes an imaging microscopic technique based on heterodyne digital holography where subwavelength-sized gold colloids can be imaged in cell environment.
Absil   +34 more
core   +1 more source

Visualization of Spatial–Temporal Evolution of Light-Induced Refractive Index in Mn:Fe:KTN Co-Doped Crystal Based on Digital Holographic Interferometry

open access: yesIEEE Photonics Journal, 2015
The dynamic refractive-index-change behavior of the light-induced process in an Mn:Fe:KTN crystal illuminated by a focused light sheet can be observed experimentally by digital holographic interferometry.
Qieni Lu   +4 more
doaj   +1 more source

Deep Space Network Radio Science and Ground‐Based Planetary Radar in the Next Decade

open access: yesRadio Science, Volume 60, Issue 7, July 2025.
Abstract The Deep Space Network (DSN) has been a core operational element of NASA's crewed and robotic exploration of the Solar System since the early 1960s. The primary role of the DSN has been to acquire telemetry and navigation data, but over the years, its radiometric and radar capabilities have expanded to form a system for obtaining unique ...
R. S. Park   +13 more
wiley   +1 more source

A Combined Non-Invasive Approach to the Study of A Mosaic Model: First Laboratory Experimental Results

open access: yesJournal of Imaging, 2019
This paper presents first laboratory results of a combined approach carried out by the use of three different portable non-invasive electromagnetic methods: Digital holographic speckle pattern interferometry (DHSPI), stimulated infrared thermography ...
Antonina Chaban   +5 more
doaj   +1 more source

Multiple Reflections on Huygens' Principle

open access: yesGeophysical Prospecting, Volume 73, Issue 6, July 2025.
ABSTRACT According to Huygens' principle, all points on a wave front act as secondary sources emitting spherical waves and the envelope of these spherical waves forms a new wave front. In the mathematical formulation of Huygens' principle, the waves emitted by the secondary sources are represented by Green's functions.
Kees Wapenaar
wiley   +1 more source

Investigating tricalcium silicate dissolution kinetics in cementitious materials through single‐particle analysis

open access: yesJournal of the American Ceramic Society, Volume 108, Issue 7, July 2025.
Abstract The dissolution kinetics of tricalcium silicate (Ca3SiO5, or C3S), the primary component of ordinary Portland cement, are critical to cement hydration, which governs key properties, such as setting, hardening, long‐term mechanical performance, and durability.
Ziyu Chen   +6 more
wiley   +1 more source

In situ visualizing the evolution of the light-induced refractive index change of Mn:KLTN crystal with digital holographic interferometry

open access: yesAIP Advances, 2015
The light-induced refractive index change in Mn:KLTN crystal, illuminated by focused light sheet, is visualized in situ and quantified by digital holographic interferometry.
Jinxin Han   +4 more
doaj   +1 more source

Measurements of Concentration differences between Liquid Mixtures using Digital Holographic Interferometry

open access: yesMetrology and Measurement Systems, 2017
We present an alternative method to detect and measure the concentration changes in liquid solutions. The method uses Digital Holographic Interferometry (DHI) and is based on measuring refractive index variations.
Guerrero-Méndez Carlos   +5 more
doaj   +1 more source

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