Frequency domain analysis of guided resonances and polarization selectivity in photonic crystal membranes

Kupec, Jan; Akcakoca, Ugur; Witzigmann, Bernd

doi:10.1364/josab.28.000069

Cited by 6 publications

(3 citation statements)

References 14 publications

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“…Breaking the 90° mirror symmetry of the PC base elements results in different coupling conditions in x- and y-direction (in-plane coordinates), thus enabling additional polarization selectivity of the filter element. This is achieved in the simplest case by a line grating (1D PC), though more control over the coupling properties is obtained by 2D PC patterns with, e.g., elliptical [ 62 , 63 , 64 ] or keyhole [ 65 ] shaped elements. Another option to introduce polarization selective properties is the use of subwavelength structures.…”

Section: Introductionmentioning

confidence: 99%

Role of Nanoimprint Lithography for Strongly Miniaturized Optical Spectrometers

et al. 2021

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Optical spectrometers and sensors have gained enormous importance in metrology and information technology, frequently involving the question of size, resolution, sensitivity, spectral range, efficiency, reliability, and cost. Nanomaterials and nanotechnological fabrication technologies have huge potential to enable an optimization between these demands, which in some cases are counteracting each other. This paper focuses on the visible and near infrared spectral range and on five types of optical sensors (optical spectrometers): classical grating-based miniaturized spectrometers, arrayed waveguide grating devices, static Fabry–Pérot (FP) filter arrays on sensor arrays, tunable microelectromechanical systems (MEMS) FP filter arrays, and MEMS tunable photonic crystal filters. The comparison between this selection of concepts concentrates on (i) linewidth and resolution, (ii) required space for a selected spectral range, (iii) efficiency in using available light, and (iv) potential of nanoimprint for cost reduction and yield increase. The main part of this review deals with our own results in the field of static FP filter arrays and MEMS tunable FP filter arrays. In addition, technology for efficiency boosting to get more of the available light is demonstrated.

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Section: Introductionmentioning

confidence: 99%

Role of Nanoimprint Lithography for Strongly Miniaturized Optical Spectrometers

et al. 2021

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“…All power incident upon the unit cell is either absorbed, transmitted or reflected within the same unit cell with no communication in terms of energy exchange between neighbors. The same scenario occurs in photonic crystal membrane filters when illuminated at normal incidence [110].…”

Section: Boundary Conditions Imposing Periodicitymentioning

confidence: 74%

Computational electromagnetics for nanowire solar cells

Kupec

Witzigmann

2012

J Comput Electron

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This review article provides an overview of various novel nanowire array solar cells and highlights the aspects of electromagnetic simulations that are a valuable tool for understanding the optical processes leading to their distinct properties. As the computational methods commonly used for the task are well established, we focus on the question how numerical modeling can be used to assess the performance of a design and reveal the working principle of the devices. We conclude that scientific literature identifies numerical simulations as paramount for design and interpretation of experimental data.

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“…In the simplest case, this is obtained by a line grating (1D PC). A higher degree of control on coupling properties is achieved by 2D PC patterns with elements owning elliptical [63][64][65] or keyhole [66] shapes. Please note that the x-and y-coordinates are spanning the in-plane directions.…”

Section: Introductionmentioning

confidence: 99%

Miniaturized Interferometric Sensors with Spectral Tunability for Optical Fiber Technology—A Comparison of Size Requirements, Performance, and New Concepts

et al. 2021

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Optical interferometric sensors have acquired significant importance in metrology and information technology, especially in terms of their potential application in launching size, selectivity, sensitivity, resolution, spectral tuning ranges, efficiency, and cost. However, these demands are often contradictory and counteract one another, and are thus difficult to simultaneously fulfill during their interaction. This review focuses on a detailed comparison of seven different strongly miniaturized sensor concepts investigating the limits of these demands. For the visible and near-infrared spectral range, seven optical sensors were reviewed based on the following methodologies: classical optical transmission and reflection gratings, arrayed waveguide gratings, static Fabry–Pérot (FP) filter arrays, MEMS tunable FP interferometers, MEMS tunable photonic crystals, plasmonic filters, and fiber tip sensors. The comparison between the selected concepts concentrates on (i) the minimum space required for a particular spectral range, (ii) resolution, (iii) the integration in optical fiber technology, (iv) tunability to save space, (v) efficiency in using available light, (vi) multiplexing, (vii) miniaturization limits, and (viii) the potential of nanoimprint for cost reduction. Technologies for enhancing efficiency to obtain more available light and their applicability to the different methodologies were studied.

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Frequency domain analysis of guided resonances and polarization selectivity in photonic crystal membranes

Cited by 6 publications

References 14 publications

Role of Nanoimprint Lithography for Strongly Miniaturized Optical Spectrometers

Role of Nanoimprint Lithography for Strongly Miniaturized Optical Spectrometers

Computational electromagnetics for nanowire solar cells

Miniaturized Interferometric Sensors with Spectral Tunability for Optical Fiber Technology—A Comparison of Size Requirements, Performance, and New Concepts

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