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#Post#: 15--------------------------------------------------
The organism used in the study
DIR By: Khatija Akter
Date: August 29, 2023, 10:21 pm
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Bejerano Pablo G. Bejerano Through this laser printing process
it is possible to reproduce the Mona Lisa in less than one
pixel. The Technical University of Denmark has created a
nanotechnology-based laser printing process that enables
high-quality images to be generated in tiny dimensions. To
demonstrate their progress, the researchers responsible for the
project have reproduced the Mona Lisa in a size smaller than
that of a pixel on the retina screen of an iPhone. Leonardo Da
Vinci's most famous work and possibly the most recognizable
painting in all of history have fit into a tiny space.
The achievement has been possible thanks to laser printing
technology, which has been developed by scientists at the
Technical University Buy Phone Number Database
HTML http://Buy Phone Number Database of Denmark , and whose
qualities are outstanding compared to what we are used to. If we
get technical we can talk about the process reaching a
resolution of 127,000 dots per inch . To become aware of the
enormity of this figure, we can compare it with the resolution
of a printed magazine, which is usually around 300 dots per inch
(dpi). Another reference can be mobile phones, if we take the
iPhone 6s Plus, its screen has 401 dpi. This laser printing
process takes place at the nanoscale . A row structure with
small columns is needed, the diameter of which is about 100
nanometers.
[img]
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The laser is transmitted from column to column and the
temperature can reach 1,500 degrees for a few nanoseconds. laser
printing The surface to be printed on is covered with a 20
nanometer layer of aluminum and the intensity of the laser
determines the colors that will be engraved . If the intensity
is low, the deformation of the nanocolumns -on which the laser
is initially applied- will be less, resulting in blue and purple
colours. While a high intensity will lead to colors like orange
or yellow. When the columns change what is modified is their
geometry, with which the way in which they absorb light also
varies . It is precisely the light that is not absorbed that the
eyes see (if they could perceive something at the nanoscale.
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