Manipulating of nanometer spacing dual-wavelength by controlling the apodized grating depth in microring resonators

Amiri, Iraj Sadegh; Zakaria, Rozalina; Yupapin, P.

doi:10.1016/j.rinp.2018.11.043

Cited by 5 publications

(2 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Afterwards, a one-dimensional (1D) silicon nitride (Si 3 N 4 , n = 2.0) rectangle-shape grating defined by periodicity P , width W and thickness T is arranged on the top of the buffer layer to modulate the permittivity of metal/dielectric interface for SPPs generation. The detailed material parameters are described in Table 1, and the values of refractive index for the given materials are obtained from [27][28][29][30]. For the practical fabrication, the deposition of different layers can be implemented by the advanced thin film processing technologies, such as magnetron sputtering, metal organic chemical vapor deposition (MOCVD), and pulsed laser deposition (PLD) methods.…”

Section: Structure Design and Mode Analysismentioning

confidence: 99%

Biosensing Performance of a Plasmonic-Grating-Based Nanolaser (Invited Paper)

Zhang¹,

Sun²,

Yang³

et al. 2021

PIER

View full text Add to dashboard Cite

We introduce and numerically investigate a high-quality resonant structure formed by a dielectric low-order diffraction grating combining materials with high refractive index contrast. The proposed structure is capable of supporting multiple plasmonic modes owing to hybridization effects, modes having the characteristic of exhibiting remarkable sensing response to the change of the environment refractive index yet limited figure of merit. To improve the figure of merit, the proposed architecture is modified by adding a layer of semiconductor gain medium, as it can compensate the internal losses. The result is an active sensor showing multi-modal lasing behaviour, with very low threshold and large mode spacing. It is found that the device shows switchable response upon modification of the pump amplitude or polarization, a very important feature when it comes to sensing devices. Finally, the achieved figure of merit is 3400 RIU −1 , one order of magnitude higher than the passive case and much higher than the theoretical limit for sensors based on Kretschmann configuration. Thus, the proposed architecture possesses great potentials as an optical sensor for bio-detection and environmental monitoring.

show abstract

Section: Structure Design and Mode Analysismentioning

confidence: 99%

Biosensing Performance of a Plasmonic-Grating-Based Nanolaser (Invited Paper)

Zhang¹,

Sun²,

Yang³

et al. 2021

PIER

View full text Add to dashboard Cite

show abstract

“…PhCs have been introduced to surface-emission lasers for the NIR wavelength range, along with the study of the role of the etching depth in PhCs [15,16]. A study on how to achieve spectral tunability by changing the depth of gratings in a micro-ring resonator was presented in [17]. Research combining DBRs with slab waveguide PhC structures to reduce the lateral losses of resonant modes in an optical filter design was put forward in [18].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Spectral Properties of DBR-Based Photonic Crystal Structure for Optical Filter Application

et al. 2022

View full text Add to dashboard Cite

In this work, the spectral properties of distributed Bragg reflector-based photonic crystal (DBR-PhC) structures were studied for the near-infrared (NIR) range. Different structural properties were varied to study their effect on the quality of the stopband and the appearance of the resonant dips in the reflection spectra of the DBR-PhC structure. The investigated structural features included the depth of PhC holes, hole radius, and number of PhC elements in the DBR structure. The 11-layered DBR structure was designed with a 2.4/1.4 refractive index contrast of alternating layers. The study aimed to achieve optical filtering properties in the DBR-PhC structure, to simplify the structural complexity of Fabry-Pérot filters by eliminating the FP cavity and upper-DBR mirror. The proposed DBR-PhC device can be used in different optical filtering and sensing applications.

show abstract