Ultra-Confinement of Polaritons in Single Atomic Layer Ag Photonic Quantum Dots

Xinyi Li; Tetyana Ignatova; Chengye Dong; Krishnan Mekkanamkulam Ananthanarayanan; Rinu Abraham Maniyara; Arpit Jain; Furkan Turker; Vinay Kammarchedu; Aida Ebrahimi; Joshua A. Robinson; Slava V. Rotkin

doi:10.1103/PhysRev.146.543

Paper details

Research paper

Experimental Characterization

Ultra-Confinement of Polaritons in Single Atomic Layer Ag Photonic Quantum Dots

Xinyi Li, Tetyana Ignatova, Chengye Dong, Krishnan Mekkanamkulam Ananthanarayanan et al.

2026·10.1103/PhysRev.146.543·arXiv:2605.21345

Samples

Each sample groups how it was prepared, characterized, and measured. Click a card to expand.

As-synthesized SiC/2D-Ag/EG van der Waals heterostructure before lithography, containing a single atomic Ag layer between SiC substrate and epitaxial graphene with up to two encapsulating graphene layers.

1 characterization1 property1 figure

ExperimentalAgStudied MaterialSiCSubstrate / DielectricCStudied Material

Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk (photonic quantum dot) with sub-micron diameter, centered on the original heterostructure.

1 preparation2 characterizations5 properties2 figures

ExperimentalAgStudied MaterialSiCSubstrate / DielectricCStudied Material

Edge region of the nano-disk showing a narrow belt attributed to self-limited oxidation of 2D-Ag at the boundary.

1 characterization1 figure

ExperimentalAgOxStudied MaterialAgStudied MaterialSiCSubstrate / DielectricCStudied Material

Materials

Studied Material

Also known as

2D-Agsingle atomic layer Ag

Variables

dimensionality= single atomic layer

studied material

Why these are connected

Related documents with shared materials, methods, properties, or citations.

Ultra-Confinement of Polaritons in Single Atomic Layer Ag Photonic Quantum Dots | Matter42 Literature

Properties

Type	Label	Value	Material	Sample	Source
Afm Step Height	snake-like feature height	0.7nm	Ag C	Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—
Dashed Layer Count	encapsulating graphene layers	2	C	As-synthesized SiC/2D-Ag/EG van der Waals heterostructure be Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—
Polariton Confinement Factor	vertical confinement	~λ/50	Ag SiC C	Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—
Polariton Confinement Factor	lateral confinement	~λ/40	Ag SiC C	Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—
Nano Disk Diameter	central nano-disk diameter	500nm	Ag SiC C	Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—

Properties

Type	Label	Value	Material	Sample	Source
Afm Step Height	snake-like feature height	0.7nm	Ag C	Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—
Dashed Layer Count	encapsulating graphene layers	2	C	As-synthesized SiC/2D-Ag/EG van der Waals heterostructure be Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—
Polariton Confinement Factor	vertical confinement	~λ/50	Ag SiC C	Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—
Polariton Confinement Factor	lateral confinement	~λ/40	Ag SiC C	Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—
Nano Disk Diameter	central nano-disk diameter	500nm	Ag SiC C	Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—

Properties

Type	Label	Value	Material	Sample	Source
Afm Step Height	snake-like feature height	0.7nm	Ag C	Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—
Dashed Layer Count	encapsulating graphene layers	2	C	As-synthesized SiC/2D-Ag/EG van der Waals heterostructure be Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—
Polariton Confinement Factor	vertical confinement	~λ/50	Ag SiC C	Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—
Polariton Confinement Factor	lateral confinement	~λ/40	Ag SiC C	Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—
Nano Disk Diameter	central nano-disk diameter	500nm	Ag SiC C	Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—

Properties

Type	Label	Value	Material	Sample	Source
Afm Step Height	snake-like feature height	0.7nm	Ag C	Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—
Dashed Layer Count	encapsulating graphene layers	2	C	As-synthesized SiC/2D-Ag/EG van der Waals heterostructure be Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—
Polariton Confinement Factor	vertical confinement	~λ/50	Ag SiC C	Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—
Polariton Confinement Factor	lateral confinement	~λ/40	Ag SiC C	Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—
Nano Disk Diameter	central nano-disk diameter	500nm	Ag SiC C	Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk	—

Ultra-Confinement of Polaritons in Single Atomic Layer Ag Photonic Quantum Dots

Samples

As-synthesized SiC/2D-Ag/EG van der Waals heterostructure before lithography, containing a single atomic Ag layer between SiC substrate and epitaxial graphene with up to two encapsulating graphene layers.

Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk (photonic quantum dot) with sub-micron diameter, centered on the original heterostructure.

Edge region of the nano-disk showing a narrow belt attributed to self-limited oxidation of 2D-Ag at the boundary.

Materials

Why these are connected

Ultra-Confinement of Polaritons in Single Atomic Layer Ag Photonic Quantum Dots

Samples

As-synthesized SiC/2D-Ag/EG van der Waals heterostructure before lithography, containing a single atomic Ag layer between SiC substrate and epitaxial graphene with up to two encapsulating graphene layers.

Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk (photonic quantum dot) with sub-micron diameter, centered on the original heterostructure.

Edge region of the nano-disk showing a narrow belt attributed to self-limited oxidation of 2D-Ag at the boundary.

Materials

Why these are connected

Ultra-Confinement of Polaritons in Single Atomic Layer Ag Photonic Quantum Dots

Samples

As-synthesized SiC/2D-Ag/EG van der Waals heterostructure before lithography, containing a single atomic Ag layer between SiC substrate and epitaxial graphene with up to two encapsulating graphene layers.

Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk (photonic quantum dot) with sub-micron diameter, centered on the original heterostructure.

Edge region of the nano-disk showing a narrow belt attributed to self-limited oxidation of 2D-Ag at the boundary.

Materials

Why these are connected

Ultra-Confinement of Polaritons in Single Atomic Layer Ag Photonic Quantum Dots

Samples

As-synthesized SiC/2D-Ag/EG van der Waals heterostructure before lithography, containing a single atomic Ag layer between SiC substrate and epitaxial graphene with up to two encapsulating graphene layers.

Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk (photonic quantum dot) with sub-micron diameter, centered on the original heterostructure.

Edge region of the nano-disk showing a narrow belt attributed to self-limited oxidation of 2D-Ag at the boundary.

Materials

Why these are connected

Ultra-Confinement of Polaritons in Single Atomic Layer Ag Photonic Quantum Dots

Samples

As-synthesized SiC/2D-Ag/EG van der Waals heterostructure before lithography, containing a single atomic Ag layer between SiC substrate and epitaxial graphene with up to two encapsulating graphene layers.

Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk (photonic quantum dot) with sub-micron diameter, centered on the original heterostructure.

Edge region of the nano-disk showing a narrow belt attributed to self-limited oxidation of 2D-Ag at the boundary.

Materials

Why these are connected

Ultra-Confinement of Polaritons in Single Atomic Layer Ag Photonic Quantum Dots

Samples

As-synthesized SiC/2D-Ag/EG van der Waals heterostructure before lithography, containing a single atomic Ag layer between SiC substrate and epitaxial graphene with up to two encapsulating graphene layers.

Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk (photonic quantum dot) with sub-micron diameter, centered on the original heterostructure.

Edge region of the nano-disk showing a narrow belt attributed to self-limited oxidation of 2D-Ag at the boundary.

Materials

Why these are connected

Ultra-Confinement of Polaritons in Single Atomic Layer Ag Photonic Quantum Dots

Samples

As-synthesized SiC/2D-Ag/EG van der Waals heterostructure before lithography, containing a single atomic Ag layer between SiC substrate and epitaxial graphene with up to two encapsulating graphene layers.

Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk (photonic quantum dot) with sub-micron diameter, centered on the original heterostructure.

Edge region of the nano-disk showing a narrow belt attributed to self-limited oxidation of 2D-Ag at the boundary.

Materials

Why these are connected

Ultra-Confinement of Polaritons in Single Atomic Layer Ag Photonic Quantum Dots

Samples

As-synthesized SiC/2D-Ag/EG van der Waals heterostructure before lithography, containing a single atomic Ag layer between SiC substrate and epitaxial graphene with up to two encapsulating graphene layers.

Lithographically fabricated SiC/2D-Ag/EG photonic nano-disk (photonic quantum dot) with sub-micron diameter, centered on the original heterostructure.

Edge region of the nano-disk showing a narrow belt attributed to self-limited oxidation of 2D-Ag at the boundary.

Materials

Why these are connected

Processing

Characterization

Properties

Processing

Characterization

Properties

Processing

Characterization

Properties

Processing

Characterization

Properties