Phase Shift Defect Modes in One-Dimensional Asymmetrical Photonic Structures Consisting of Two Rugate Segments With Different Periodicities

Liu, Yanyun; Lu, Zhao

doi:10.2528/pier10121106

Cited by 12 publications

(3 citation statements)

References 46 publications

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“…Finally, we note that the demonstrated electrotunable model of Fabry-Perot resonator can be applied to the realization of any one-dimensional photonic micro-and nano-devices such as tunable bandpass filters [29,30], photonic crystal mirrors [31,32], polarizers [33], polarizing beam splitters [34,35], channel-drop filters [36] and multichanneled filters [37] for application in the wide electro-magnetic spectral range.…”

Section: Results Analysismentioning

confidence: 99%

Electrically Tunable Fabry-Perot Resonator Based on Microstructured Si Containing Liquid Crystal

Tolmachev¹,

Melnikov²,

Baldycheva³

et al. 2012

PIER

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Abstract-We have built Fabry-Pérot resonators based on microstructured silicon and a liquid crystal. The devices exhibit tuning of the resonance peaks over a wide range, with relative spectral shifts of up to ∆λ/λ = 10%. In order to achieve this substantial spectral shift, cavity peaks of high order were used. Under applied voltages of up to 15 V, a variation in the refractive index of the nematic liquid crystal E7 from ∆n LC = 0.12 to ∆n LC = 0.17 was observed. These results may have practical applications in the near-, mid and far-infrared range.

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Section: Results Analysismentioning

confidence: 99%

Electrically Tunable Fabry-Perot Resonator Based on Microstructured Si Containing Liquid Crystal

Tolmachev¹,

Melnikov²,

Baldycheva³

et al. 2012

PIER

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“…In case of periodicity perturbation, the Bragg reflection becomes more complicated and gains great practical value [5]. The step disturbance of phase of periodic parameters results in a high quality eigen oscillation within the Bragg reflection bandwidth [6,7]. The smooth perturbation of the amplitude of periodic parameters can ensure relative decrease of the quality factor of collateral resonance frequencies (these being outside the Bragg reflection band).…”

Section: Introductionmentioning

confidence: 99%

Wave Packets Scattered by Non-Periodic Bragg-Type Layered Structures

Borulko¹,

Drobakhin²,

Сидоров³

2013

PIER B

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Abstract-The time delay, space shift and widening of wave packet transmitted and reflected by structures with Bragg mirrors have been investigated. The specific structures such as Bragg mirrors, resonators, and structures with chirp variation of thickness of the "period" have been considered. The calculation has been carried out under the conditions that carrier frequency, and incidence angle is in the vicinity of the Bragg resonance. Integral (mass center) and differential (group) estimates of the delay time and space shift have been compared. The conditions for the appearance of anomalous (negative) mass center delay or mass center shift (Goos-Hänchen shift) of the reflected wave packet have been determined. The shape transformations of the wave packet illuminating periodic and quasiperiodic apodized Bragg reflectors have been under consideration. Spatial apodization of permittivity contrast yields much smaller shape deformation of the transmitted wave packet upon incidence at angles and carrier frequency near the edges of reflection band, as well in Bragg reflection band, in comparison with phenomena in similar periodic structures. The values of group delay for layered structures with a small chirp variation of optical (electrical) thickness of the period along longitudinal coordinates have been experimentally obtained in microwave range.

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“…PBGs are of technical use in designing the Bragg reflectors (BRs) that play an important role in solid state laser systems [1][2][3]. Engineering PBGs to realize other possible photonic devices, including resonators, polarizer, filters, beam splitter, and waveguides are also available [4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Complex Photonic Band Structures in a Photonic Crystal Containing Lossy Semiconductor Insb

Chang¹,

Wu²,

Wu³

2012

PIER

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Abstract-In this work, complex photonic band structure (CPBS) in a semiconductor-dielectric photonic crystal (SDPC) operating at terahertz frequencies is theoretically investigated. The SDPC is air/(S/D) N /air where the dielectric layer D is SiO 2 , the semiconductor layer S is an intrinsic semiconductor InSb, and N is the number of periods. Using the experimental data for the strongly temperaturedependent plasma frequency and damping frequency for InSb, we calculate the CPBS for the infinite SDPC at distinct operating temperatures. The CPBS is then compared with the calculated transmittance, reflectance, and absorptance as well in the finite SDPC. Based on the calculated CPBS, the role played by the loss factor (damping frequency), in InSb is revealed. Additionally, from the calculated transmittance spectra, we further investigate the cutoff frequency for the SDPC. The dependences of cutoff frequency on the number of periods and the filling factor of semiconductor layer are numerically illustrated.

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Phase Shift Defect Modes in One-Dimensional Asymmetrical Photonic Structures Consisting of Two Rugate Segments With Different Periodicities

Cited by 12 publications

References 46 publications

Electrically Tunable Fabry-Perot Resonator Based on Microstructured Si Containing Liquid Crystal

Electrically Tunable Fabry-Perot Resonator Based on Microstructured Si Containing Liquid Crystal

Wave Packets Scattered by Non-Periodic Bragg-Type Layered Structures

Complex Photonic Band Structures in a Photonic Crystal Containing Lossy Semiconductor Insb

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