Modal Properties of Photonic Crystal Cavities and Applications to Lasers

Photonic crystal cavities enable strong light–matter interactions, with numerous applications, such as ultra-small and energy-efficient semiconductor lasers, enhanced nonlinearities and single-photon sources. This paper reviews the properties of the modes of photonic crystal cavities, with a special...

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Main Authors: Marco Saldutti, Meng Xiong, Evangelos Dimopoulos, Yi Yu, Mariangela Gioannini, Jesper Mørk
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/11/11/3030
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author Marco Saldutti
Meng Xiong
Evangelos Dimopoulos
Yi Yu
Mariangela Gioannini
Jesper Mørk
author_facet Marco Saldutti
Meng Xiong
Evangelos Dimopoulos
Yi Yu
Mariangela Gioannini
Jesper Mørk
author_sort Marco Saldutti
collection DOAJ
description Photonic crystal cavities enable strong light–matter interactions, with numerous applications, such as ultra-small and energy-efficient semiconductor lasers, enhanced nonlinearities and single-photon sources. This paper reviews the properties of the modes of photonic crystal cavities, with a special focus on line-defect cavities. In particular, it is shown how the fundamental resonant mode in line-defect cavities gradually turns from Fabry–Perot-like to distributed-feedback-like with increasing cavity size. This peculiar behavior is directly traced back to the properties of the guided Bloch modes. Photonic crystal cavities based on Fano interference are also covered. This type of cavity is realized through coupling of a line-defect waveguide with an adjacent nanocavity, with applications to Fano lasers and optical switches. Finally, emerging cavities for extreme dielectric confinement are covered. These cavities promise extremely strong light–matter interactions by realizing deep sub-wavelength mode size while keeping a high quality factor.
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spelling doaj.art-49f17e3f575d48b8abb754429de619202023-11-23T00:42:08ZengMDPI AGNanomaterials2079-49912021-11-011111303010.3390/nano11113030Modal Properties of Photonic Crystal Cavities and Applications to LasersMarco Saldutti0Meng Xiong1Evangelos Dimopoulos2Yi Yu3Mariangela Gioannini4Jesper Mørk5DTU Fotonik, Technical University of Denmark, DK-2800 Kongens Lyngby, DenmarkDTU Fotonik, Technical University of Denmark, DK-2800 Kongens Lyngby, DenmarkDTU Fotonik, Technical University of Denmark, DK-2800 Kongens Lyngby, DenmarkDTU Fotonik, Technical University of Denmark, DK-2800 Kongens Lyngby, DenmarkDepartment of Electronics and Telecommunications, Politecnico di Torino, IT-10129 Turin, ItalyDTU Fotonik, Technical University of Denmark, DK-2800 Kongens Lyngby, DenmarkPhotonic crystal cavities enable strong light–matter interactions, with numerous applications, such as ultra-small and energy-efficient semiconductor lasers, enhanced nonlinearities and single-photon sources. This paper reviews the properties of the modes of photonic crystal cavities, with a special focus on line-defect cavities. In particular, it is shown how the fundamental resonant mode in line-defect cavities gradually turns from Fabry–Perot-like to distributed-feedback-like with increasing cavity size. This peculiar behavior is directly traced back to the properties of the guided Bloch modes. Photonic crystal cavities based on Fano interference are also covered. This type of cavity is realized through coupling of a line-defect waveguide with an adjacent nanocavity, with applications to Fano lasers and optical switches. Finally, emerging cavities for extreme dielectric confinement are covered. These cavities promise extremely strong light–matter interactions by realizing deep sub-wavelength mode size while keeping a high quality factor.https://www.mdpi.com/2079-4991/11/11/3030photonic crystal(s)extreme dielectric confinementlight–matter interactionline-defect cavitiesnanolasermicrolaser
spellingShingle Marco Saldutti
Meng Xiong
Evangelos Dimopoulos
Yi Yu
Mariangela Gioannini
Jesper Mørk
Modal Properties of Photonic Crystal Cavities and Applications to Lasers
Nanomaterials
photonic crystal(s)
extreme dielectric confinement
light–matter interaction
line-defect cavities
nanolaser
microlaser
title Modal Properties of Photonic Crystal Cavities and Applications to Lasers
title_full Modal Properties of Photonic Crystal Cavities and Applications to Lasers
title_fullStr Modal Properties of Photonic Crystal Cavities and Applications to Lasers
title_full_unstemmed Modal Properties of Photonic Crystal Cavities and Applications to Lasers
title_short Modal Properties of Photonic Crystal Cavities and Applications to Lasers
title_sort modal properties of photonic crystal cavities and applications to lasers
topic photonic crystal(s)
extreme dielectric confinement
light–matter interaction
line-defect cavities
nanolaser
microlaser
url https://www.mdpi.com/2079-4991/11/11/3030
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AT mengxiong modalpropertiesofphotoniccrystalcavitiesandapplicationstolasers
AT evangelosdimopoulos modalpropertiesofphotoniccrystalcavitiesandapplicationstolasers
AT yiyu modalpropertiesofphotoniccrystalcavitiesandapplicationstolasers
AT mariangelagioannini modalpropertiesofphotoniccrystalcavitiesandapplicationstolasers
AT jespermørk modalpropertiesofphotoniccrystalcavitiesandapplicationstolasers