Enhanced thermo-optic nonlinearities in a MoS2-on-silicon microring resonator

Yaojing Zhang; Li Tao; Dan Yi; Jian Bin Xu; Hon Ki Tsang

doi:10.7567/1882-0786/ab626c

Enhanced thermo-optic nonlinearities in a MoS₂-on-silicon microring resonator

Yaojing Zhang, Li Tao, Dan Yi, Jian Bin Xu, Hon Ki Tsang

Chinese University of Hong Kong

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

8 Citations (Scopus)

Abstract

We experimentally investigated the thermal nonlinearity in a MoS₂-on-silicon microring resonator. In the hybrid MoS₂-on-silicon microring resonator, there was a threefold increase in the resonance shift rate as input optical power increased. The effective photothermal coefficient of the MoS₂-on-silicon resonator was enhanced to 4.7 × 10^-15 m² W^-1. The enhancement can be attributed to the presence of defect states of the MoS₂ film, leading to additional absorption of light and enhanced heating, which changed the effective refractive index of the resonator. Efficient thermal bistability was observed in the resonator.

Original language	English
Article number	022004
Journal	Applied Physics Express
Volume	13
Issue number	2
DOIs	https://doi.org/10.7567/1882-0786/ab626c
Publication status	Published - 1 Feb 2020
Externally published	Yes

Access to Document

10.7567/1882-0786/ab626c

Cite this

@article{8723b7cec5944441a8a37554ac6ec836,

title = "Enhanced thermo-optic nonlinearities in a MoS2-on-silicon microring resonator",

abstract = "We experimentally investigated the thermal nonlinearity in a MoS2-on-silicon microring resonator. In the hybrid MoS2-on-silicon microring resonator, there was a threefold increase in the resonance shift rate as input optical power increased. The effective photothermal coefficient of the MoS2-on-silicon resonator was enhanced to 4.7 × 10-15 m2 W-1. The enhancement can be attributed to the presence of defect states of the MoS2 film, leading to additional absorption of light and enhanced heating, which changed the effective refractive index of the resonator. Efficient thermal bistability was observed in the resonator.",

author = "Yaojing Zhang and Li Tao and Dan Yi and Xu, {Jian Bin} and Tsang, {Hon Ki}",

note = "Publisher Copyright: {\textcopyright} 2020 The Japan Society of Applied Physics.",

year = "2020",

month = feb,

day = "1",

doi = "10.7567/1882-0786/ab626c",

language = "English",

volume = "13",

journal = "Applied Physics Express",

issn = "1882-0778",

publisher = "Japan Society of Applied Physics",

number = "2",

}

TY - JOUR

T1 - Enhanced thermo-optic nonlinearities in a MoS2-on-silicon microring resonator

AU - Zhang, Yaojing

AU - Tao, Li

AU - Yi, Dan

AU - Xu, Jian Bin

AU - Tsang, Hon Ki

PY - 2020/2/1

Y1 - 2020/2/1

N2 - We experimentally investigated the thermal nonlinearity in a MoS2-on-silicon microring resonator. In the hybrid MoS2-on-silicon microring resonator, there was a threefold increase in the resonance shift rate as input optical power increased. The effective photothermal coefficient of the MoS2-on-silicon resonator was enhanced to 4.7 × 10-15 m2 W-1. The enhancement can be attributed to the presence of defect states of the MoS2 film, leading to additional absorption of light and enhanced heating, which changed the effective refractive index of the resonator. Efficient thermal bistability was observed in the resonator.

AB - We experimentally investigated the thermal nonlinearity in a MoS2-on-silicon microring resonator. In the hybrid MoS2-on-silicon microring resonator, there was a threefold increase in the resonance shift rate as input optical power increased. The effective photothermal coefficient of the MoS2-on-silicon resonator was enhanced to 4.7 × 10-15 m2 W-1. The enhancement can be attributed to the presence of defect states of the MoS2 film, leading to additional absorption of light and enhanced heating, which changed the effective refractive index of the resonator. Efficient thermal bistability was observed in the resonator.

UR - http://www.scopus.com/inward/record.url?scp=85082677337&partnerID=8YFLogxK

U2 - 10.7567/1882-0786/ab626c

DO - 10.7567/1882-0786/ab626c

M3 - Article

AN - SCOPUS:85082677337

SN - 1882-0778

VL - 13

JO - Applied Physics Express

JF - Applied Physics Express

IS - 2

M1 - 022004

ER -

Enhanced thermo-optic nonlinearities in a MoS₂-on-silicon microring resonator

Abstract

Access to Document

Other files and links

Fingerprint

Cite this