Special Issue: 2D Materials (2017)

Special issue: 2D materials

Special issue: 2D materials

The isolation of graphene and its unique optoelectronic properties paved the way for the exploration of other atomically thin or 2D materials. While only a few 2D crystals and their combinations have been explored thus far, this field is without …

Monolithic optoelectronic integrated broadband optical receiver with graphene photodetectors

Monolithic optoelectronic integrated broadband optical receiver with graphene photodetectors

Optical receivers with potentially high operation bandwidth and low cost have received considerable interest due to rapidly growing data traffic and potential Tb/s optical interconnect requirements. Experimental realization of 65 GHz optical signal …

Resonant quenching of Raman scattering due to out-of-plane A1g/A′1 modes in few-layer MoTe2

Resonant quenching of Raman scattering due to out-of-plane A1g/A′1 modes in few-layer MoTe2

Temperature-dependent (5 K–300 K) Raman scattering study of A1g/A′1 phonon modes in mono-layer (1L), bilayer (2L), trilayer (3L), and tetralayer (4L) MoTe2 is reported. The temperature evolution of the modes’ intensity critically depends on …

Graphene plasmonics: physics and potential applications

Graphene plasmonics: physics and potential applications

Plasmon in graphene possesses many unique properties. It originates from the collective motion of massless Dirac fermions, and the carrier density dependence is distinctively different from conventional plasmons. In addition, graphene plasmon is …

Spectroscopic investigation of defects in two-dimensional materials

Spectroscopic investigation of defects in two-dimensional materials

Two-dimensional (2D) materials have been extensively studied in recent years due to their unique properties and great potential for applications. Different types of structural defects could present in 2D materials and have strong influence on their …

Integration of 2D materials on a silicon photonics platform for optoelectronics applications

Integration of 2D materials on a silicon photonics platform for optoelectronics applications

Owing to enormous growth in both data storage and the demand for high-performance computing, there has been a major effort to integrate telecom networks on-chip. Silicon photonics is an ideal candidate, thanks to the maturity and economics of …

High-response hybrid quantum dots- 2D conductor phototransistors: recent progress and perspectives

High-response hybrid quantum dots- 2D conductor phototransistors: recent progress and perspectives

Having been inspired by the tremendous progress in material nanoscience and device nanoengineering, hybrid phototransistors combine solution processed colloidal semiconductor quantum dots (QDs) with graphene or two-dimensional (2D) semiconductor …

Excitons in atomically thin 2D semiconductors and their applications

Excitons in atomically thin 2D semiconductors and their applications

The research on emerging layered two-dimensional (2D) semiconductors, such as molybdenum disulfide (MoS2), reveals unique optical properties generating significant interest. Experimentally, these materials were observed to host extremely strong …

Flatland plasmonics and nanophotonics based on graphene and beyond

Flatland plasmonics and nanophotonics based on graphene and beyond

In this paper, we review and discuss how the recently discovered two-dimensional (2D) Dirac materials, particularly graphene, may be utilized as new efficient platforms for excitations of propagating and localized surface plasmon polaritons (SPPs) …

Optical properties of atomically thin transition metal dichalcogenides: observations and puzzles

Optical properties of atomically thin transition metal dichalcogenides: observations and puzzles

Recent results on the optical properties of monolayer and few layers of semiconducting transition metal dichalcogenides are reviewed. Experimental observations are presented and discussed in the frame of existing models, highlighting the limits of …

Active 2D materials for on-chip nanophotonics and quantum optics

Active 2D materials for on-chip nanophotonics and quantum optics

Two-dimensional materials have emerged as promising candidates to augment existing optical networks for metrology, sensing, and telecommunication, both in the classical and quantum mechanical regimes. Here, we review the development of several …