Strong enhancement of light-matter interaction in graphene coupled to a photonic crystal nanocavity

Xuetao Gan; Kin Fai Mak; Yuanda Gao; Yumeng You; Fariba Hatami; James Hone; Tony F. Heinz; Dirk Englund

doi:10.1021/nl302746n

Strong enhancement of light-matter interaction in graphene coupled to a photonic crystal nanocavity

Xuetao Gan, Kin Fai Mak, Yuanda Gao, Yumeng You, Fariba Hatami, James Hone, Tony F. Heinz, Dirk Englund

Physics

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

219 Scopus citations

Abstract

We demonstrate a large enhancement in the interaction of light with graphene through coupling with localized modes in a photonic crystal nanocavity. Spectroscopic studies show that a single atomic layer of graphene reduces the cavity reflection by more than a factor of one hundred, while also sharply reducing the cavity quality factor. The strong interaction allows for cavity-enhanced Raman spectroscopy on subwavelength regions of a graphene sample. A coupled-mode theory model matches experimental observations and indicates significantly increased light absorption in the graphene layer. The coupled graphene-cavity system also enables precise measurements of graphene's complex refractive index.

Original language	English (US)
Pages (from-to)	5626-5631
Number of pages	6
Journal	Nano letters
Volume	12
Issue number	11
DOIs	https://doi.org/10.1021/nl302746n
State	Published - Nov 14 2012

All Science Journal Classification (ASJC) codes

Bioengineering
Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanical Engineering

Access to Document

10.1021/nl302746n

Cite this

@article{4b7ad2ce3a024a0d84b06752b427b993,

title = "Strong enhancement of light-matter interaction in graphene coupled to a photonic crystal nanocavity",

abstract = "We demonstrate a large enhancement in the interaction of light with graphene through coupling with localized modes in a photonic crystal nanocavity. Spectroscopic studies show that a single atomic layer of graphene reduces the cavity reflection by more than a factor of one hundred, while also sharply reducing the cavity quality factor. The strong interaction allows for cavity-enhanced Raman spectroscopy on subwavelength regions of a graphene sample. A coupled-mode theory model matches experimental observations and indicates significantly increased light absorption in the graphene layer. The coupled graphene-cavity system also enables precise measurements of graphene's complex refractive index.",

author = "Xuetao Gan and Mak, {Kin Fai} and Yuanda Gao and Yumeng You and Fariba Hatami and James Hone and Heinz, {Tony F.} and Dirk Englund",

year = "2012",

month = nov,

day = "14",

doi = "10.1021/nl302746n",

language = "English (US)",

volume = "12",

pages = "5626--5631",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "11",

}

TY - JOUR

T1 - Strong enhancement of light-matter interaction in graphene coupled to a photonic crystal nanocavity

AU - Gan, Xuetao

AU - Mak, Kin Fai

AU - Gao, Yuanda

AU - You, Yumeng

AU - Hatami, Fariba

AU - Hone, James

AU - Heinz, Tony F.

AU - Englund, Dirk

PY - 2012/11/14

Y1 - 2012/11/14

N2 - We demonstrate a large enhancement in the interaction of light with graphene through coupling with localized modes in a photonic crystal nanocavity. Spectroscopic studies show that a single atomic layer of graphene reduces the cavity reflection by more than a factor of one hundred, while also sharply reducing the cavity quality factor. The strong interaction allows for cavity-enhanced Raman spectroscopy on subwavelength regions of a graphene sample. A coupled-mode theory model matches experimental observations and indicates significantly increased light absorption in the graphene layer. The coupled graphene-cavity system also enables precise measurements of graphene's complex refractive index.

AB - We demonstrate a large enhancement in the interaction of light with graphene through coupling with localized modes in a photonic crystal nanocavity. Spectroscopic studies show that a single atomic layer of graphene reduces the cavity reflection by more than a factor of one hundred, while also sharply reducing the cavity quality factor. The strong interaction allows for cavity-enhanced Raman spectroscopy on subwavelength regions of a graphene sample. A coupled-mode theory model matches experimental observations and indicates significantly increased light absorption in the graphene layer. The coupled graphene-cavity system also enables precise measurements of graphene's complex refractive index.

UR - http://www.scopus.com/inward/record.url?scp=84869152915&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84869152915&partnerID=8YFLogxK

U2 - 10.1021/nl302746n

DO - 10.1021/nl302746n

M3 - Article

C2 - 23043452

AN - SCOPUS:84869152915

VL - 12

SP - 5626

EP - 5631

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 11

ER -

Strong enhancement of light-matter interaction in graphene coupled to a photonic crystal nanocavity

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this