A non-polarization short-wave-pass thin film edge filter

Yu, Kan; Zhou, Xiaoyang; Wang, Jiaqi; Xu, Jingjing; Yin, Jin

doi:10.1007/s11801-014-4060-4

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…The typical stack of the short-wave-pass thin film edge filter based on the thin film optics theory, is (0.5L H 0.5L)^P where P is the number of cycles coatings, H and L represent the optical thicknesses of λ 0 / 4 of the high refractive index and low refractive index film layers 14 , and λ 0 is the center wavelength under normal incidence. The optical film thickness is expressed as the product of the refractivity n and the physical thickness d (n × d) of the high refractivity material and low refractivity material, and the optical film thickness λo/4 at the center wavelength λo is normally shown as 1.…”

Section: Results and Discusionmentioning

confidence: 99%

Study New Design of Edge Filter of a 1D-Photonic Crystal using Ta2O5/SiO2 Thin Films

2020

JCBSC

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A new multilayer thin film edge filter design has been demonstrated in this study. A design of one-dimensional photonic crystal (PC) structure consisting of alternate layers of Silicon dioxide (SiO 2) and Tantalum pentoxide (Ta 2 O 5) that blocks infrared light and passes only light of short wavelengths. The design was done with the computational help of optimization using the "Essential Macleod" software. The resolution of the short wave pass (SWP) edge filter is studied .The properties of the initial and optimal edge filter design by varying the angle of incidence of light at TE (s-polarization), TM (p-polarization) and mean polarization modes have been investigated. Results show a new design for optimal edge filter of optical shortwave pass (SWP) that can be used as a smart energy saving window.

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Section: Results and Discusionmentioning

confidence: 99%

Study New Design of Edge Filter of a 1D-Photonic Crystal using Ta2O5/SiO2 Thin Films

2020

JCBSC

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“…SWP edge filters pass the shorter wavelengths of the spectrum while blocking the longer wavelengths, and LWP edge filters do the opposite. The designs of edge filters are as follows [25].…”

Section: Introductionmentioning

confidence: 99%

Optimal design of multilayer optical thin film structure for smart energy saving applications using needle optimization approach

Mashaly

2024

Phys. Scr.

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In this work, a novel design of a one dimensional photonic crystal (1D PC) is investigated. The 1DPC structure is composed of alternating layers of tantalum pentoxide (Ta2O5) and silicon dioxide (Sio2).The proposed 1D PC structure is designed to act as short wave pass (SWP) edge filter that selectively passes light of short wavelengths, while the infrared light is blocked. In this study, Essential Macleod software is used to create the optimal design with the computational support of the needle synthesis technique. By varying the incidence angle of the mean polarized light mode, we can determine the features of the optimal SWP edge filter design, which leads to an important application for this filter. It can shed light on the filter's suitability as a smart energy saving window coating for hot climate regions. The study includes different hot regions in Saudi Arabia such as Mecca, Riyadh, Dammam, Arar and Alaqiq. They were used as case studies in this research. According to the study of the optimal design of SWP edge filter applied in Mecca, Riyadh, Dammam, Arar and Alaqiq provinces, the light transmittance in the visible region is more than 99% during the summer solstice and more than 96% during the winter solstice. The photonic band gab (PBG) is almost constant during the summer solstice without shifting or decreasing in size whereas in the winter solstice, the PBG shifts toward the short wavelengths and decreases in size by increasing the angle of incidence. This allows an amount of solar energy to enter in winter. Riyadh, Dammam, and Arar provinces experienced a significant increase in solar energy during the winter solstice, more than Mecca and Alaqiq provinces.

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“…One design has the passband on the high wavelength side of the stop band, while the other one is on the low wavelengths side. The designs of the edge filters are the following 13 Where H and L are quarter-wave optical thickness of a high index layer and a low index layer respectively. The double-layer combination (HL) stack between massive substrate (nS) and air (nO) is repeated A times.…”

Section: Introductionmentioning

confidence: 99%

Tunable Edge Filter as a Smart Energy Saving Window at the Hot Climates of the Baha Region in the Kingdom of Saudi Arabia

2018

jcbsc

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This Study demonstrated a design of one-dimensional photonic crystal (PC) structure consisting of alternate layers of Silicon dioxide (Sio2) and Tantalum pentoxide (Ta2O5) that blocks infrared light and passes only light of short wavelengths. Results show a new design for optimal edge filter of optical shortwave pass (SWP) filter that can be used as a smart energy saving window. Alaqiq and Almakhwah are hot climate provinces at Albaha region in Kingdom of Saudi Arabia. They have been taken as examples for this study. The design was done with the computational help of optimization using the "Essential Macleod" software. The mean polarized light mode has been contained a transmittance greater than 98% in both summer and winter solstices in the visible region and more than 40% of the amount of sun energy has entered in winter from the infrared region which has been reflected (stopped) in summer. That results in a 0.025-0.175 µm photonic band gap (PBG) shift in the direction of short wavelengths by increasing the angle of incidence.

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A non-polarization short-wave-pass thin film edge filter

Cited by 5 publications

References 9 publications

Study New Design of Edge Filter of a 1D-Photonic Crystal using Ta2O5/SiO2 Thin Films

Study New Design of Edge Filter of a 1D-Photonic Crystal using Ta2O5/SiO2 Thin Films

Optimal design of multilayer optical thin film structure for smart energy saving applications using needle optimization approach

Tunable Edge Filter as a Smart Energy Saving Window at the Hot Climates of the Baha Region in the Kingdom of Saudi Arabia

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