We tried to explain and analyze the latest cutting-edge technologies in nanophotonic materials workshop. The subjects were around :
1) quantum confinement
2) nano materials
3) synthesis methods
4) applications (laser, sensors, solar cells, medical, ...)
5) promising nano materials and methods
6) NEMS & MEMS
7) Ideas and latest interesting researches
Master instructor of nanophotonic materials workshop (D234165), "Inv. Ali Bakhshi".
We tried to explain and analyze the latest cutting-edge technologies in nanophotonic materials workshop. The subjects were around :
1) quantum confinement
2) nano materials
3) synthesis methods
4) applications (laser, sensors, solar cells, medical, ...)
5) promising nano materials and methods
6) NEMS & MEMS
7) Ideas and latest interesting researches
Master instructor of nanophotonic materials workshop (D234165), "Inv. Ali Bakhshi".
X-rays make up X-radiation, a form of electromagnetic radiation. Most X-rays have a wavelength ranging from 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3×1016 Hz to 3×1019 Hz) and energies in the range 100 eV to 100 keV. X-ray wavelengths are shorter than those of UV rays and typically longer than those of gamma rays. In many languages, X-radiation is referred to with terms meaning Röntgen radiation, after the German scientist Wilhelm Röntgen who discovered these on November 8, 1895, who usually is credited as its discoverer, and who named it X-radiation to signify an unknown type of radiation.Spelling of X-ray(s) in the English language includes the variants x-ray(s), xray(s), and X ray(s).
X-rays make up X-radiation, a form of electromagnetic radiation. Most X-rays have a wavelength ranging from 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3×1016 Hz to 3×1019 Hz) and energies in the range 100 eV to 100 keV. X-ray wavelengths are shorter than those of UV rays and typically longer than those of gamma rays. In many languages, X-radiation is referred to with terms meaning Röntgen radiation, after the German scientist Wilhelm Röntgen who discovered these on November 8, 1895, who usually is credited as its discoverer, and who named it X-radiation to signify an unknown type of radiation.Spelling of X-ray(s) in the English language includes the variants x-ray(s), xray(s), and X ray(s).
9. Salisbury screens
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(i) a thin resistive screen
(ii) a low-loss dielectric substrate with an exact thickness corresponding to a
quarter of the wavelength of incident EM wave
(iii) a continuous metallic surface
12. Metamaterial-Based Perfect Absorbers
There are two absorption mechanisms in MMPA;
(i) the dielectric loss (ii) the Ohmic loss
The dielectric loss is the dissipation of energy of EM wave occurring in the
interior of a dielectric medium. The loss tangent determines the degree of
loss.
The Ohmic loss is the energy dissipation in an electrical circuit arising from
circuit resistance when current flows.
و است کمتر پایین های فرکانس در عایقی تلفات از اهمی تلفات ها ساختار این درلی
کند می غلبه اهمی تلفات هرتز ترا حد در باال های فرکانس در.
12
14. مقاالت بررسی
Broadband Infrared (IR) Metamaterial Absorber
An Ultra-Wideband Miniaturized Metamaterial Absorber in the Ultrahigh-
frequency Range
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18. An Ultra-Wideband Miniaturized Metamaterial
Absorber in the Ultrahigh-frequency Range
2016 IEEE
absorptivity is more than 90% in 0.8–2.7 GHz
bandwidth over 108%
Application:
absorbing elements in UHF-RFID systems and 4G communications.
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22. منابع
Metamaterial Electromagnetic Absorbers and Plasmonic Structures, writed
by Adnan Noor,2010
Metamaterials for Perfect Absorption, writed by Young Pak Lee - Joo Yull
Rhee-Young Joon Yoo - Ki Won Kim, 2016
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