Indium tin oxide (ITO) exhibits high transmittance and low resistivity, enabling its combination with a glass substrate to form a transparent ITO-absorbing glass. The absorption performance of absorbing architectural glass is significantly influenced by the thickness of various ITO c...
2, we calculated the reflection, transmission, and absorption spectra of the proposed design at 358 K. It is clear that in this working mode, the transmission spectrum values (blue dotted line) from 0.3 to 1.5 THz are almost 0, which demonstrates that a 1 µm-thick metallic state VO2 ...
It can be seen that high transmittance can only be obtained when the transmission phase is either π/2 or −π/2, which is consistent with the above theoretical analysis. In order to solve the above contradiction between antireflection and phase control abilities, we must break the symmetry ...
2.3. Absorption Mechanism of Electromagnetic-Wave-Absorbing Materials According to electromagnetic wave propagation theory, when electromagnetic waves are incident on a lossy dielectric in free space, as previously mentioned, reflection and transmittance occur at the interface. The input impedance Zin of th...
(thickness ≪λ) and low loss means that fabrics will cause only slight absorption and reflection losses to the millimeter-wave signals. Bjarnason et al. [1] have published a number of fabric attenuation measurements covering the millimeter-wave, terahertz, and infrared (IR) frequency bands. ...
Fig. 3. Absorption at different structural dimensions parameter values of MA:(a) d2, and (b) d3. Theoretical analysis and discussion The structural model of the proposed absorber is applicable to multiple reflection theory (MIRT) [56]. Therefore, the MIRT model of the MA absorber is shown...
The transmittance was analyzed by taking account of the multiple reflection in the YBa/sub 2/Cu/sub 3/O/sub 7/ and MgO layers. Linear increase of the transmittance with temperature in the normal phase was explained by the Drude model, in which parameters (plasma frequency, relaxation time) ...
In the expression (1), nav is an average refractive index in a plane orthogonal to the helical axis and “p” is a helical pitch in a helical structure of the liquid crystal molecule. The band width Δλ of a reflection wavelength is represented by the following expression (2): Δλ=Δ...
Terahertz integrated phase modulators are mainly divided into two categories: monolithic integrated and waveguide embedded. The former mainly includes high-low pass type, reflection type, and vector synthesis type. For the high-low pass and reflection approaches, it is easy to realize significant ...
(1)R(ω) = 1-Г(ω)-τ(ω)(2)S11 = 10·logГ(ω)where R(ω) is the absorbing rate, Γ(ω) is the reflectance, and τ(ω) is the transmittance. In CST, parameter S can be derived from permittivity, permeability, and frequency. The reflection loss can be further calculated ...