Results 81 to 90 of about 7,252,201 (202)

High numerical aperture freeform-based illumination for compact lensless holographic microscopy

JPhys Photonics
Digital lensless holographic microscopy (DLHM) is a simple and cost-effective technique for retrieving label-free microscopic information from transparent samples.
Maria J Lopera, Dries Rosseel, Yunfeng Nie, Carlos Trujillo, Hugo Thienpont, Heidi Ottevaere   +5 more
doaj   +1 more source

Molecular organic photonics [PDF]

, 1994
The work presented in this thesis is derived from experimentation in the field of molecular organic photonics. This is done from the standpoint that devices cannot be understood without recourse to the molecular properties and vice versa. A background of
Gray, David, Gray, D
core  

State of the art detection methods of microplastics as marine litter: a mini review

Discover Oceans
Microplastics have emerged as a significant environmental concern, particularly in marine ecosystems. The detection and quantification of microplastics pose considerable challenges due to their small size, diverse composition, and widespread distribution.
Rajib Biswas
doaj   +1 more source

The e.m. field nside the unidimensional Photonic Crystals - Study at optical frequencies applying "Quasi-Normal-Modes" theory

, 2010
In this thesis, the behavior of the electromagnetic field is studied, at optical frequencies, in the one-dimensional photonic crystals, using the theory of "Quasi-Normal Modes (QNM). The following thesis is inspired by the QNM theory, recently developed for homogeneous cavity open just on one side.
openaire   +2 more sources

Laser, Optics and Photonics Series

OP-TEC has developed program planning and course materials to support education and training for future and current photonics technicians. Classroom materials include Fundamentals of Light and Lasers, Elements of Photonics, Mathematics for Photonics ...

core  

CHILDREN’S UNIVERSITY: OPTICS AND PHOTONICS FOR CHILDREN [PDF]

, 2015
Today, optics and photonics is widely regarded as one of the most important key technologies for this century. Many experts even anticipate that the 21st century will be the century of the photon.
Dana Seyringer, Seyringer, Dana
core  

The National Skill Standards for Photonics Systems Technicians

, 2018
This 11-page resource, developed by the National Center for Optics and Photonics Education (OP-TEC), is a national skill standard for photonics systems technicians.

core   +1 more source

Math for Laser and Optics Technicians: Trigonometry

This 2-page resource, from the National Center for Optics and Photonics Education (OP-TEC), briefly covers a trigonometry concept that is important for photonics technicians to understand. "Photonics Technicians need to be able

core   +1 more source

Non linear effects modelisation in photonic cristals applied to optical limitation

, 2006
We present here a discussion about the use of optical nonlinear material in photonic crystals (PCs) for optical limiting purpose. The link between cubic (Kerr) nonlinearities or phase transition and the complex diffraction phenomenon occurring inside a PC can allow ultra-fast and self-triggered switching from a transparent state towards an opaque one ...
openaire   +1 more source

Special polarization characteristic features of a three dimensional terahertz photonic crystal not apparently apply to physical and optical basic rules

, 2018
11 pages and 12 figures. addition of footnotes (from 4 to 6) and supplemental modification of sentences and symbols for better comprehension.
openaire   +2 more sources