Numerical investigations on CdTe-based rectangular photonic waveguides
Cadmium telluride (CdTe)-based photonic waveguides featuring an H-bend have been designed and computed in detail by COMSOL Multiphysics at an operating wavelength of 1.55 μm. The structure includes CdTe as the core material, SiO2 as the cladding, and ZnO as the substrate. The overall dimension of th...
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Elsevier
2025-12-01
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666032625000523 |
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| author | Istiak Ahmed Rasel Md. Alamin Hossain Pappu Jaker Hossain |
| author_facet | Istiak Ahmed Rasel Md. Alamin Hossain Pappu Jaker Hossain |
| author_sort | Istiak Ahmed Rasel |
| collection | DOAJ |
| description | Cadmium telluride (CdTe)-based photonic waveguides featuring an H-bend have been designed and computed in detail by COMSOL Multiphysics at an operating wavelength of 1.55 μm. The structure includes CdTe as the core material, SiO2 as the cladding, and ZnO as the substrate. The overall dimension of the waveguide is (4 × 3) μm where the core width and height are 1.2 μm and 0.8 μm while the substrate height is 1 μm. Several performance parameters have been evaluated, including the power confinement factor (PCF), optical loss, effective mode index (neff), and electric field distribution, across varying wavelengths and dimensions of the core and cladding. The waveguides exhibit impressive PCF values of 98.65 % for the TE and 96.54 % for the TM modes. The value of PCF decreases to 86 % at a wavelength of 2.5 μm for both TE and TM modes. The loss values are calculated as −0.895 dB/cm and −0.94 dB/cm, for the TE and TM modes, respectively. The neff are determined to be 2.53 and 2.55 for the TE and TM modes, respectively. The remarkable properties of CdTe-based photonic waveguides including a high PCF and low optical losses hold great potential for applications in optical communication, mid-infrared photonics, and quantum photonics. |
| format | Article |
| id | doaj-art-3209d40b0e774a85b5d84e914d3e543d |
| institution | DOAJ |
| issn | 2666-0326 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Elsevier |
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| spelling | doaj-art-3209d40b0e774a85b5d84e914d3e543d2025-08-20T02:55:20ZengElsevierPhysics Open2666-03262025-12-012510030210.1016/j.physo.2025.100302Numerical investigations on CdTe-based rectangular photonic waveguidesIstiak Ahmed Rasel0Md. Alamin Hossain Pappu1Jaker Hossain2Photonics & Advanced Materials Laboratory, Department of Electrical and Electronic Engineering, University of Rajshahi, Rajshahi, 6205, BangladeshPhotonics & Advanced Materials Laboratory, Department of Electrical and Electronic Engineering, University of Rajshahi, Rajshahi, 6205, BangladeshCorresponding author.; Photonics & Advanced Materials Laboratory, Department of Electrical and Electronic Engineering, University of Rajshahi, Rajshahi, 6205, BangladeshCadmium telluride (CdTe)-based photonic waveguides featuring an H-bend have been designed and computed in detail by COMSOL Multiphysics at an operating wavelength of 1.55 μm. The structure includes CdTe as the core material, SiO2 as the cladding, and ZnO as the substrate. The overall dimension of the waveguide is (4 × 3) μm where the core width and height are 1.2 μm and 0.8 μm while the substrate height is 1 μm. Several performance parameters have been evaluated, including the power confinement factor (PCF), optical loss, effective mode index (neff), and electric field distribution, across varying wavelengths and dimensions of the core and cladding. The waveguides exhibit impressive PCF values of 98.65 % for the TE and 96.54 % for the TM modes. The value of PCF decreases to 86 % at a wavelength of 2.5 μm for both TE and TM modes. The loss values are calculated as −0.895 dB/cm and −0.94 dB/cm, for the TE and TM modes, respectively. The neff are determined to be 2.53 and 2.55 for the TE and TM modes, respectively. The remarkable properties of CdTe-based photonic waveguides including a high PCF and low optical losses hold great potential for applications in optical communication, mid-infrared photonics, and quantum photonics.http://www.sciencedirect.com/science/article/pii/S2666032625000523CdTeSiO2ZnORectangular waveguideH-bending |
| spellingShingle | Istiak Ahmed Rasel Md. Alamin Hossain Pappu Jaker Hossain Numerical investigations on CdTe-based rectangular photonic waveguides Physics Open CdTe SiO2 ZnO Rectangular waveguide H-bending |
| title | Numerical investigations on CdTe-based rectangular photonic waveguides |
| title_full | Numerical investigations on CdTe-based rectangular photonic waveguides |
| title_fullStr | Numerical investigations on CdTe-based rectangular photonic waveguides |
| title_full_unstemmed | Numerical investigations on CdTe-based rectangular photonic waveguides |
| title_short | Numerical investigations on CdTe-based rectangular photonic waveguides |
| title_sort | numerical investigations on cdte based rectangular photonic waveguides |
| topic | CdTe SiO2 ZnO Rectangular waveguide H-bending |
| url | http://www.sciencedirect.com/science/article/pii/S2666032625000523 |
| work_keys_str_mv | AT istiakahmedrasel numericalinvestigationsoncdtebasedrectangularphotonicwaveguides AT mdalaminhossainpappu numericalinvestigationsoncdtebasedrectangularphotonicwaveguides AT jakerhossain numericalinvestigationsoncdtebasedrectangularphotonicwaveguides |