Highly efficient self-collimation based waveguide for Mid-IR applications

Noori, Mina; Soroosh, Mohammad; Baghban, Hamed

doi:10.1016/j.photonics.2016.01.005

Cited by 38 publications

(13 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a highly qualified platform for the development of devices for optical integration, self‐collimating PCs must provide broadband and wide‐angle operation for both TE and TM polarizations . In recent years, a great number of studies have been devoted to broaden the frequency range for SC phenomena, expand the incident angle range, achieve PISC, and reduce the reflections from the interfaces …”

Section: Fundamentals Of Self‐collimationmentioning

confidence: 99%

“…For SC studies, the operating frequency range is expressed as the ratio of the self‐collimating range to the central frequency (Δω/ω c or Δλ/λ c ). Since achieving SC in a broad frequency range enhances the structure's efficiency for OICs, much attention has been devoted to this subject in recent years …”

Section: Broadband Scmentioning

confidence: 99%

“…Recently, a study on a square array of circular holes showed that a bandwidth as wide as 2.61% is achievable for all‐angle PISC considering some compromises on maximum deviation angle (3°). This was the first research reporting that the three desirable characteristics of all‐angle, broadband, and PISC could be merged into a unique structure in the Mid‐IR frequency range, tailoring structural parameters and considering a small deviation from the ideal SC …”

Section: Broadband Scmentioning

confidence: 99%

“…A simple index matching mechanism provided by a change in the radius of the first row of the scatterers in a square PC structure led to a coupling efficiency enhancement in . As an extended work, a study was carried out on the optimization of ARs to work well enough for both polarizations . Later, a polarization beam splitter designed on the basis of the SC effect with properly designed ARs for each interface was reported which resulted in high extinction ratios …”

Section: Antireflection For Sc Based Structuresmentioning

confidence: 99%

“…It is still of great importance to discover methods to couple the beam more efficiently from an optical fiber to SC‐based optical circuits . Additionally, providing all‐angle, and polarization‐insensitive properties in a broad bandwidth makes SC‐based substrates more appropriate for OICs …”

Section: Introductionmentioning

confidence: 98%

See 4 more Smart Citations

Self‐Collimation in Photonic Crystals: Applications and Opportunities

2017

Self Cite

View full text Add to dashboard Cite

A comprehensive review considering recent advances in self-collimation and its applications in optical integration is covered in the current article. Self-collimation is compared to the conventional technique of photonic bandgap engineering to control the light propagation in photonic crystal-based structures. It is fully discussed how the self-collimation phenomenon can be tailored to be independent of the incident angle and polarization. This adds substantial flexibility to the structure to overcome light coupling challenges and simultaneously aids in the omission of bulk and challenging elements, including polarizers and lenses from optical integrated circuits. Additionally, designed structures have the potential to be rescaled to operate in any desired frequency range thanks to the scalability rule in the field of electromagnetics. Moreover, it is shown that one can boost the coupling efficiency by applying an anti-reflection property to the structure, which provides not only efficient index matching but also the matching between external waves with uniform amplitude and Bloch waves with periodic amplitude.

show abstract

Section: Fundamentals Of Self‐collimationmentioning

confidence: 99%

Section: Broadband Scmentioning

confidence: 99%

Section: Broadband Scmentioning

confidence: 99%

Section: Antireflection For Sc Based Structuresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

See 3 more Smart Citations

Self‐Collimation in Photonic Crystals: Applications and Opportunities

2017

Self Cite

View full text Add to dashboard Cite

show abstract

A Highly Accurate Refractive Index Sensor with Two Operation Modes Based on Photonic Crystal Ring Resonator

Vakili

Noori

2019

Annalen der Physik

Self Cite

View full text Add to dashboard Cite

A 2D hole-type hexagonal lattice photonic crystal is utilized, herein, to detect the refractive index change of the material infiltrated into the designed circular sensing area which also resembles a ring resonator. The accuracy of the detection process is enhanced considering the simultaneous shift of the resonance wavelengths and the intensity modulation which occur in two separate spectral regions. The presented structure has the ability to detect liquids, material concentrations in fluids and gases having refractive indices in the range of n = 1-2 with sensitivity and quality factor of 61 nm/RIU and 3000, respectively, for resonance-wavelength-shift-based operation. The detection range of n = 1-1.4 with the sensitivity of S = 0.69 NI/RIU is achieved for the intensity-based measurement and the results show good linearity in the operating range.

show abstract

Self‐Collimation and Slow Light‐Based Refractive Index Sensor with a Large Detection Range

2021

Self Cite

View full text Add to dashboard Cite

In this study, a refractive index sensor based on self‐collimation and slow light is presented which operates in the Mid‐IR range (4 µm < λ < 4.133 µm). Here, the square and hexagonal arrays are merged as the background platform and the sensing area, respectively to provide self‐collimation and slow light properties. Three sensors based on slow‐light and self‐collimation are presented in detail which provide Q‐factor, sensitivity, and detection range of 227, 104 nm RIU−1, and 1–1.7, respectively in the best case. Furthermore, the sensor design based on self‐collimation and photonic bandgap phenomena in the background platform and the sensing area, respectively is presented with a single detection unit. The presented sensors are capable of gas or liquid detection with refractive indices in the range of 1–2 with enhanced Q‐factor and sensitivity of over 620 and 123, respectively.

show abstract

Highly efficient self-collimation based waveguide for Mid-IR applications

Cited by 38 publications

References 51 publications

Self‐Collimation in Photonic Crystals: Applications and Opportunities

Self‐Collimation in Photonic Crystals: Applications and Opportunities

A Highly Accurate Refractive Index Sensor with Two Operation Modes Based on Photonic Crystal Ring Resonator

Self‐Collimation and Slow Light‐Based Refractive Index Sensor with a Large Detection Range

Contact Info

Product

Resources

About