Fourier Optics for the Analysis of Distributed Absorbers Under THz Focusing Systems

Nuria Llombart; Beatriz Blázquez; Angelo Freni; Andrea Neto

doi:10.1109/TTHZ.2015.2439511

Fourier Optics for the Analysis of Distributed Absorbers Under THz Focusing Systems

Nuria Llombart, Beatriz Blázquez, Angelo Freni, Andrea Neto

Tera-Hertz Sensing

Research output: Contribution to journal › Article › Scientific › peer-review

13 Citations (Scopus)

119 Downloads (Pure)

Abstract

An analytical spectral model able to accurately and efficiently characterize absorbers distributed in the focal plane of focusing THz systems is presented. The model is obtained by using a Fourier optics representation of the electromagnetic field in the focal plane in conjunction with a recently developed equivalent network representation for the interaction of plane waves with distributed absorbers. The model is validated by comparisons with numerical full-wave simulations. Finally, the model is used to design a few architectures based on lens-coupled Kinetic Inductance Detectors (KIDs), which show high absorption efficiency over a
large bandwidth.

Original language	English
Pages (from-to)	573-583
Number of pages	11
Journal	IEEE Transactions on Terahertz Science and Technology
Volume	5
Issue number	4
DOIs	https://doi.org/10.1109/TTHZ.2015.2439511
Publication status	Published - 2015

Bibliographical note

Accepted Author Manuscript

Keywords

Focusing systems
Fourier optics
THz absorbers

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10.1109/TTHZ.2015.2439511

3676409 - 2015_Fourier_Optics_forAccepted author manuscript, 3.36 MB

Cite this

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title = "Fourier Optics for the Analysis of Distributed Absorbers Under THz Focusing Systems",

abstract = "An analytical spectral model able to accurately and efficiently characterize absorbers distributed in the focal plane of focusing THz systems is presented. The model is obtained by using a Fourier optics representation of the electromagnetic field in the focal plane in conjunction with a recently developed equivalent network representation for the interaction of plane waves with distributed absorbers. The model is validated by comparisons with numerical full-wave simulations. Finally, the model is used to design a few architectures based on lens-coupled Kinetic Inductance Detectors (KIDs), which show high absorption efficiency over alarge bandwidth.",

keywords = "Focusing systems, Fourier optics, THz absorbers",

author = "Nuria Llombart and Beatriz Bl{\'a}zquez and Angelo Freni and Andrea Neto",

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year = "2015",

doi = "10.1109/TTHZ.2015.2439511",

language = "English",

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T1 - Fourier Optics for the Analysis of Distributed Absorbers Under THz Focusing Systems

AU - Llombart, Nuria

AU - Blázquez, Beatriz

AU - Freni, Angelo

AU - Neto, Andrea

N1 - Accepted Author Manuscript

PY - 2015

Y1 - 2015

N2 - An analytical spectral model able to accurately and efficiently characterize absorbers distributed in the focal plane of focusing THz systems is presented. The model is obtained by using a Fourier optics representation of the electromagnetic field in the focal plane in conjunction with a recently developed equivalent network representation for the interaction of plane waves with distributed absorbers. The model is validated by comparisons with numerical full-wave simulations. Finally, the model is used to design a few architectures based on lens-coupled Kinetic Inductance Detectors (KIDs), which show high absorption efficiency over alarge bandwidth.

AB - An analytical spectral model able to accurately and efficiently characterize absorbers distributed in the focal plane of focusing THz systems is presented. The model is obtained by using a Fourier optics representation of the electromagnetic field in the focal plane in conjunction with a recently developed equivalent network representation for the interaction of plane waves with distributed absorbers. The model is validated by comparisons with numerical full-wave simulations. Finally, the model is used to design a few architectures based on lens-coupled Kinetic Inductance Detectors (KIDs), which show high absorption efficiency over alarge bandwidth.

KW - Focusing systems

KW - Fourier optics

KW - THz absorbers

U2 - 10.1109/TTHZ.2015.2439511

DO - 10.1109/TTHZ.2015.2439511

M3 - Article

SN - 2156-342X

VL - 5

SP - 573

EP - 583

JO - IEEE Transactions on Terahertz Science and Technology

JF - IEEE Transactions on Terahertz Science and Technology

IS - 4

ER -

Fourier Optics for the Analysis of Distributed Absorbers Under THz Focusing Systems

Abstract

Bibliographical note

Keywords

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