Temperature-Dependent Tunable Photonic Channel Filter

Suthar, Bhuvneshwer; Bhargava, A.

doi:10.1109/lpt.2011.2178401

Cited by 41 publications

(17 citation statements)

References 9 publications

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“…One-dimensional PC (1DPC) is the simplest structure that shows periodicity along a single direction. In recent, 1DPC has been studied as the tunable characteristic for various potential applications as an optical lter [2,3], switches [4,5], sensors [6][7][8][9] etc. Various materials have been studied as component of 1DPC such as dielectric, semiconductor, chalcogenide, plasma, metal, superconductor, metamaterial etc.…”

Section: Introductionmentioning

confidence: 99%

“…The tunable characteristic of defect mode can be used as a tunable narrow lter, sensor and switching application. Suthar et al [2] has been studied the tuning properties of chalcogenide based photonic crystal as lter application. Aly et al [16] has been studied the application of ultraviolet radiation for tunable lter application of 1DPC structure.…”

Section: Introductionmentioning

confidence: 99%

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Study Design of Optical Sensor 1D Photonic Crystal by Introducing Metal/Defect/Metal Multilayer Defect: Malaria Diagnosis

Ankita

Bissa²,

Suthar³

et al. 2021

Preprint

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We introduce a defect layer between two metal layers at middle of a one-dimensional photonic crystal. This structure is used to study the tunable characteristic of proposed structure. The transmission, reflection and absorption are calculated using transfer matrix method. The influence of metal layer width, incident angle and defect layer refractive index has been investigated to analyze the tunable characteristic. The shifting of defect mode is improved with metal layer width and incident angle too. Due to metal layer, the localized surface plasmon wave causes decrease in transmission and appearance of absorption. For TE and TM polarization, the localized defect mode shows a blue shift with incident angle, but the transmission peak reduces with incident angle in TE polarization. Therefore, the proposed structure can be used as optical sensor with high sensitivity for malaria diagnosis compared with previous result.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study Design of Optical Sensor 1D Photonic Crystal by Introducing Metal/Defect/Metal Multilayer Defect: Malaria Diagnosis

Ankita

Bissa²,

Suthar³

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Photonic crystals (PCs) have been the object of intensive studies in the past two and half decades due to their unique electromagnetic properties and potential applications [1][2][3][4][5][6][7][8][9][10]. PCs are the periodic structures in which refractive index changes periodically in space.…”

Section: Introductionmentioning

confidence: 99%

Temperature Dependent Tuning of Defect Mode inside Photonic Bandgap for Cwdm Applications

Panda

Upadhyay

Awasthi

2017

Optics

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Abstract:A theoretical study of temperature dependent tuning of defect mode inside photonic bandgap of one-dimensional photonic crystal with binary defect for optical communication applications based on coarse wavelength division multiplexing (CWDM) is presented. The transmission properties of the proposed structure are investigated through the transfer matrix method (TMM) at normal incidence. The proposed contraption is capable of selecting and switching any one wavelength channel at a time centered at particular wavelength out of 12 CWDM channels as per the international telecommunication union (ITU) grid G.694.2. It is very useful for narrowband wavelength selective switching (NWSS) applications based on CWDM. This study also provides some insight to design new kind of thermally tunable optical filters which can be used effectively in remote sensing and thermal imaging applications.

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“…The defect in normal PC can be introduced by changing the thickness of the layer, inserting another material into the structure or removing a layer from normal PC structure. The frequency (or wavelength) of defect mode can be tuned by changing the operating temperature, by applying an external electric and/or magnetic field or by optical illuminations and leads to various photonic devices [5][6][7][8][9][10]. One of the important applications of tunable PC filter is employed in designing the dense wavelength division multiplexer DWDM system [11,12].…”

Section: Introductionmentioning

confidence: 99%

Design of Tunable Wavelength Demultiplexer for DWDM Application Based on 1-D Photonic Crystal with KTP Defect

Srivastava¹,

Tomar²,

Srivastava

et al. 2015

Springer Proceedings in Physics

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We theoretically investigate the tunable wavelength selective filter by using one-dimensional photonic crystal (1D PC) with potassium titanyl phosphate (KTP) as a defect layer For this we study the transmission characteristic of the multilayered structure composed of (MgF 2 /ZnS) N (KTP)/(MgF 2 /ZnS) N . In order to get the transmittance spectra of defect PC we apply transfer matrix method (TMM). We use KTP crystal as defect layer because it is an electro-optical material and its refractive index changes with the change in the electric field intensity. Due to change in the refractive index, defect modes of the PC structure can be tuned at the desired wavelength. From the analysis of the transmittance spectra it is found that the average change in the central wavelength of defect mode is 0.6 nm/ 0.01 × 10 10 V/m. This property of tunable PC filter can be exploited in designing a wavelength demultiplexer for DWDM application in optical communication.

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Temperature-Dependent Tunable Photonic Channel Filter

Cited by 41 publications

References 9 publications

Study Design of Optical Sensor 1D Photonic Crystal by Introducing Metal/Defect/Metal Multilayer Defect: Malaria Diagnosis

Study Design of Optical Sensor 1D Photonic Crystal by Introducing Metal/Defect/Metal Multilayer Defect: Malaria Diagnosis

Temperature Dependent Tuning of Defect Mode inside Photonic Bandgap for Cwdm Applications

Design of Tunable Wavelength Demultiplexer for DWDM Application Based on 1-D Photonic Crystal with KTP Defect

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