Research Topic

Absorption Enhancement and Perfect Absorption in 2D Materials

About this Research Topic

Two dimensional (2D) materials, such as graphene, transition metal dichalcogenides, black phosphorus etc., have been intensively studied recently due to their exceptional electrical and optical properties for applications in high-performance optical and photonic devices. However, the light absorption of 2D materials is normally very poor due to the ultra-thin thickness, which seriously limits their practical applications in photonic and optoelectronic devices. Thus, achieving enhanced absorption or even perfect absorption in 2D materials is highly desirable, but also challenging.

Many methods have been applied to enhance the optical absorption of 2D materials, and near perfect absorption in graphene and other 2D materials have been experimentally demonstrated by patterning them and/or coupling with photonic crystals, plasmonic nanostructures, metamaterials, etc. However, there are still some challenges to developing 2D materials-based absorption enhancement structures. The first challenge is how to simplify the designed structure. New methods and designs to enhance the absorption in 2D materials are desired. The second challenge is how to control the absorption bandwidth for the absorption structures. Broad absorption bandwidth is highly desired for photodetection and imaging, and narrow absorption bandwidth is important for optical filters and sensors. The third challenge is how to dynamically tune the enhanced absorption in 2D materials. The tunability of enhanced absorption is very important in 2D materials-based active devices. Until now, some applications of absorption enhancement in 2D materials have been demonstrated, but the practical applications are still in an early stage, and the application prospects are very broad.

The aim of this Research Topic is to collect articles around enhancing the light absorption properties of various 2D materials. Subjects of interest include, but are not limited to:

• New methods and designs for realization of absorption enhancement or perfect absorption in graphene and graphene-like 2D materials.
• Fabrication and characterization of 2D materials based absorption enhancement structures (including the perfect absorption structures) in different frequency ranges.
• Applications of 2D materials-based absorption enhancement structures in advanced optical and optoelectronic devices, such as photodetectors, optical modulators, light emitting devices, sensors, photovoltaic devices, optical filters, nonlinear photonic devices and so on.


Keywords: two dimensional materials, optical absorption


Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.

Two dimensional (2D) materials, such as graphene, transition metal dichalcogenides, black phosphorus etc., have been intensively studied recently due to their exceptional electrical and optical properties for applications in high-performance optical and photonic devices. However, the light absorption of 2D materials is normally very poor due to the ultra-thin thickness, which seriously limits their practical applications in photonic and optoelectronic devices. Thus, achieving enhanced absorption or even perfect absorption in 2D materials is highly desirable, but also challenging.

Many methods have been applied to enhance the optical absorption of 2D materials, and near perfect absorption in graphene and other 2D materials have been experimentally demonstrated by patterning them and/or coupling with photonic crystals, plasmonic nanostructures, metamaterials, etc. However, there are still some challenges to developing 2D materials-based absorption enhancement structures. The first challenge is how to simplify the designed structure. New methods and designs to enhance the absorption in 2D materials are desired. The second challenge is how to control the absorption bandwidth for the absorption structures. Broad absorption bandwidth is highly desired for photodetection and imaging, and narrow absorption bandwidth is important for optical filters and sensors. The third challenge is how to dynamically tune the enhanced absorption in 2D materials. The tunability of enhanced absorption is very important in 2D materials-based active devices. Until now, some applications of absorption enhancement in 2D materials have been demonstrated, but the practical applications are still in an early stage, and the application prospects are very broad.

The aim of this Research Topic is to collect articles around enhancing the light absorption properties of various 2D materials. Subjects of interest include, but are not limited to:

• New methods and designs for realization of absorption enhancement or perfect absorption in graphene and graphene-like 2D materials.
• Fabrication and characterization of 2D materials based absorption enhancement structures (including the perfect absorption structures) in different frequency ranges.
• Applications of 2D materials-based absorption enhancement structures in advanced optical and optoelectronic devices, such as photodetectors, optical modulators, light emitting devices, sensors, photovoltaic devices, optical filters, nonlinear photonic devices and so on.


Keywords: two dimensional materials, optical absorption


Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.

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Submission Deadlines

28 June 2020 Abstract
28 September 2020 Manuscript

Participating Journals

Manuscripts can be submitted to this Research Topic via the following journals:

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Topic Editors

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Submission Deadlines

28 June 2020 Abstract
28 September 2020 Manuscript

Participating Journals

Manuscripts can be submitted to this Research Topic via the following journals:

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