Influence of Spatial Dispersion on Propagation Properties of Waveguides Based on Hyperbolic Metamaterial

Janaszek, Bartosz; Tyszka-Zawadzka, Anna; Szczepanski, Pawel

doi:10.3390/ma14226885

Cited by 3 publications

(2 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast to hBN, the three Reststrahlen frequency bands of alpha-molybdenum trioxide exhibit overlapping regions that are theoretically more anisotropic. Due to their distinctive optical properties, these materials have found extensive applications in various fields such as surface phonon polaritons [11][12][13][14][15][16][17], nanoimaging technology [18][19][20], sensors [21], and waveguides [22,23].…”

Section: Introductionmentioning

confidence: 99%

Spatial Shifts of Reflected Light Beam on Hexagonal Boron Nitride/Alpha-Molybdenum Trioxide Structure

Bai,

Li,

Cui

et al. 2024

Materials

View full text Add to dashboard Cite

This investigation focuses on the Goos–Hänchen (GH) and Imbert–Fedorov (IF) shifts on the surface of the uniaxial hyperbolic material hexagonal boron nitride (hBN) based on the biaxial hyperbolic material alpha-molybdenum (α-MoO3) trioxide structure, where the anisotropic axis of hBN is rotated by an angle with respect to the incident plane. The surface with the highest degree of anisotropy among the two crystals is selected in order to analyze and calculate the GH- and IF-shifts of the system, and obtain the complex beam-shift spectra. The addition of α-MoO3 substrate significantly amplified the GH shift on the system’s surface, as compared to silica substrate. With the p-polarization light incident, the GH shift can reach 381.76λ0 at about 759.82 cm−1, with the s-polarization light incident, the GH shift can reach 288.84λ0 at about 906.88 cm−1, and with the c-polarization light incident, the IF shift can reach 3.76λ0 at about 751.94 cm−1. The adjustment of the IF shift, both positive and negative, as well as its asymmetric nature, can be achieved by manipulating the left and right circular polarization light and torsion angle. The aforementioned intriguing phenomena offer novel insights for the advancement of sensor technology and optical encoder design.

show abstract

Section: Introductionmentioning

confidence: 99%

Spatial Shifts of Reflected Light Beam on Hexagonal Boron Nitride/Alpha-Molybdenum Trioxide Structure

Bai,

Li,

Cui

et al. 2024

Materials

View full text Add to dashboard Cite

show abstract

“…The scope of investigation is concentrated on light generation in distributed feedback (DFB) lasers based on photonic hypercrystals in the presence of spatial dispersion. Following our previous research [ 8 , 26 ], the presented analysis includes PHC structures based on hyperbolic media of various geometries, which correspond to different nonlocal effects. To unveil these nonlocal generation effects, we have demonstrated the difference between threshold generation spectra predicted with the help of local and nonlocal approach.…”

Section: Introductionmentioning

confidence: 99%

Spatial Dispersion in Hypercrystal Distributed Feedback Lasing

Janaszek

Szczepanski

2022

Materials

Self Cite

View full text Add to dashboard Cite

This work is a first approach to investigate the role of spatial dispersion in photonic hypercrystals (PHCs). The scope of the presented analysis is focused on exploiting nonlocality, which can be controlled by appropriate design of the structure, to obtain new light generation effects in a distributed feedback (DFB) laser based on PHC, which are not observable under weak spatial dispersion. Here, we use effective medium approximation and our original model of threshold laser generation based on anisotropic transfer matrix method. To unequivocally identify nonlocal generation phenomena, the scope of our analysis includes comparison between local and nonlocal threshold generation spectra, which may be obtained for different geometries of PHC structure. In particular, we have presented that, in the presence of strong spatial dispersion, it is possible to obtain spectrally shifted Bragg wavelengths of TE- and TM-polarization spectra, lowered generation threshold levels for both light polarizations, generation of light of selected light polarization (TE or TM), or simultaneous generation of TE- and TM-polarized waves at different frequencies with controllable spectral separation, instead of single mode operation anticipated with local approach.

show abstract

Hyperbolic Metamaterials

Moradi

2023

Springer Series in Optical Sciences

View full text Add to dashboard Cite

Influence of Spatial Dispersion on Propagation Properties of Waveguides Based on Hyperbolic Metamaterial

Cited by 3 publications

References 48 publications

Spatial Shifts of Reflected Light Beam on Hexagonal Boron Nitride/Alpha-Molybdenum Trioxide Structure

Spatial Shifts of Reflected Light Beam on Hexagonal Boron Nitride/Alpha-Molybdenum Trioxide Structure

Spatial Dispersion in Hypercrystal Distributed Feedback Lasing

Hyperbolic Metamaterials

Contact Info

Product

Resources

About