Characterization and application of multilayer diffraction gratings as optochemical sensors

Dmitruk, N. L.; Mayeva, O.I.; Mamykin, S.V.; Yastrubchak, O.; Klopfleisch, M.

doi:10.1016/s0924-4247(00)00504-5

Cited by 15 publications

(18 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast to case of classical gratings, plasmon resonances occur in the bigratings with both p-and spolarization (Fig.4). (1,3,5,6) and R sp (s-to-p) (2, 4) conversion -experimental curves for SBH of Al/GaAs (1,2), Au/GaAs (3,4) and Au/InP (5, 6) for grating (5,6) and bigrating (1)(2)(3)(4). Azimuth Θ=45°.…”

Section: Maximizing Signal-to-noise Ratio In the Sbhmentioning

confidence: 99%

“…In this paper we deal with the solid-state polaritonic photodetectors based on the metal (Au,Ag,Al)/ semiconductor (GaAs, InP) surface barrier heterostructure with the periodically corrugated interface [1], which is the key element for such devices as optochemical sensor [2], selective solar cells, etc. Surface plasmon resonance in SBH with microrelief at the interface is a basic principle underlying the device operation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Contribution of Structure and Morphology of Design Constituents to Performance Improvement of Multilayer Polaritonic Photodetector

Dmitruk

Mayeva

Mamykin

et al. 2003

Sensors

View full text Add to dashboard Cite

This paper is devoted to estimate contribution of structure and morphology of the individual design constituents to performance improvement of multilayer polaritonic photodetector (optochemical sensor). Surface plasmon resonance (SPR) in the surface barrier heterostructure (SBH) with the corrugated interface is used as the basic principle underlying the device operation. The demonstration of correlation of the contribution with the enhanced SBH features was performed through the adequate characterization tool.

show abstract

Section: Maximizing Signal-to-noise Ratio In the Sbhmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Contribution of Structure and Morphology of Design Constituents to Performance Improvement of Multilayer Polaritonic Photodetector

Dmitruk

Mayeva

Mamykin

et al. 2003

Sensors

View full text Add to dashboard Cite

show abstract

“…One-dimensional DG interfaces were received by using holographic etching [1,2]. Manufacturing layered structures were produced by thermal evaporation thin metal (Au, Ag, Al layers or Au/Ag bilayers and dielectric layers (SiO x )) as well as by d.c. magnetron sputtering (ITO) on the processed GaAs semiconductor substrates at RT.…”

Section: Samples Design and Methodsmentioning

confidence: 99%

“…Au, Ag, Al and bilayer Au/Ag were chosen as a plasmon-carrying metals because of their outlook for polaritonic optoelectronics device application due to the optical properties of theirs (when the important requirement for a SP excitation occurs). The basic properties of the main approaches to the determination of the optical constants of metal films are discussed in [1] for Au and in [2] for Al. Optical parameters for Ag were taken from [4].…”

Section: Introductionmentioning

confidence: 99%

“…Inclusion of additional covering and/or (intermediate) dielectric (SiO x ; x=2) and/or conducting (ITO) (tuning) layers in geometry with diffraction grating (DG) as input -coupling component to excite SPs is useful in modifying the SP resonant (SPR) characteristics and creating the potential for universal devices with multifunctional sensing capability (optochemical sensors [1], polarization -and wavelength (angle) -selective photodetectors etc. [2]).…”

mentioning

confidence: 99%

See 1 more Smart Citation

Modeling and Constituent Design of SPR Based and/or Waveguide Type Sensors

Dmitruk¹,

Mayeva²,

Korovin³

et al.

2006 25th International Conference on Microelectronics

View full text Add to dashboard Cite

This work is motivated by interest to the waveguide geometry which is attractive because it allows the surface polariton (SP) sensors to be incorporated into the integrated optical system. Inclusion of additional covering and/or (intermediate) dielectric (SiO x ; x=2) and/or conducting (ITO) (tuning) layers in geometry with diffraction grating (DG) as input -coupling component to excite SPs is useful in modifying the SP resonant (SPR) characteristics and creating the potential for universal devices with multifunctional sensing capability (optochemical sensors [1], polarization -and wavelength (angle) -selective photodetectors etc.[2]). Properties (reflectance/ transmittance) of a multilayer stack with DG as optical waveguide (or a leaky quasi-waveguide) are described. Particularly emphasis is placed on modeling the spectral (angular) resonance characteristics of the device modified by inclusion of a heavily doped oxide (ITO) layer. The adequate optical model approaches for the dispersion of the optical constants of ITO films were proposed to full description of the photoresponse and to optimization of future device design. In this paper the possibility of implementing the SPR sensing principle in optical (quasi)waveguide structures designed was demonstrated. We explored constituent design considerations to show how variation structural parameters affect SPR based sensor (detector) response.

show abstract

Influence of Bi doping on the electronic structure of (Ga,Mn)As epitaxial layers

Yastrubchak,

Tataryn,

Gluba

et al. 2023

Sci Rep

View full text Add to dashboard Cite

The influence of the addition of Bi to the dilute ferromagnetic semiconductor (Ga,Mn)As on its electronic structure as well as on its magnetic and structural properties has been studied. Epitaxial (Ga,Mn)(Bi,As) layers of high structural perfection have been grown using low-temperature molecular-beam epitaxy. Post-growth annealing of the samples improves their structural and magnetic properties and increases the hole concentration in the layers. Hard X-ray angle-resolved photoemission spectroscopy reveals a strongly dispersing band in the Mn-doped layers, which crosses the Fermi energy and is caused by the high concentration of Mn-induced itinerant holes located in the valence band. An increased density of states near the Fermi level is attributed to additional localized Mn states. In addition to a decrease in the chemical potential with increasing Mn doping, we find significant changes in the valence band caused by the incorporation of a small atomic fraction of Bi atoms. The spin–orbit split-off band is shifted to higher binding energies, which is inconsistent with the impurity band model of the band structure in (Ga,Mn)As. Spectroscopic ellipsometry and modulation photoreflectance spectroscopy results confirm the valence band modifications in the investigated layers.

show abstract

Characterization and application of multilayer diffraction gratings as optochemical sensors

Cited by 15 publications

References 8 publications

Contribution of Structure and Morphology of Design Constituents to Performance Improvement of Multilayer Polaritonic Photodetector

Contribution of Structure and Morphology of Design Constituents to Performance Improvement of Multilayer Polaritonic Photodetector

Modeling and Constituent Design of SPR Based and/or Waveguide Type Sensors

Influence of Bi doping on the electronic structure of (Ga,Mn)As epitaxial layers

Contact Info

Product

Resources

About