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

Abstract

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 on-chip photonic components ranging from electro-optic modulators, photodetectors, bolometers, and light sources that are essential building blocks for a fully integrated nanophotonic and quantum photonic circuit.

Giant shift upon strain on the fluorescence spectrum of VNNB color centers in h-BN

“…Quantum emissions from two-dimensional (2D) materials have recently received considerable and rapidly rising interest of researchers in both condensed matter and quantum optics [1][2][3] as these systems provide a potential basis for emerging technologies such as quantum nanophotonics [4][5][6] , quantum sensing [7][8][9] , and quantum information processing 10,11 . The observation of singlephoton emitters (SPEs) in hexagonal boron nitrite (h-BN) has added a fascinating new facet to the research field of layered materials 12 .…”

Quantum technologies with optically interfaced solid-state spins

“…Likewise, we will overlook two-dimensional material systems, such as transition metal dichalcogenides and hexagonal boron nitride, that have recently emerged as hosts for single quantum emitters [15][16][17] . For these materials, explorations toward using the valley or spin degree of freedom of excitons or defect states as qubits are still in their infancy but could open functionalities for quantum photonics, optoelectronics, and sensing unattainable in bulk materials.…”

Second-harmonic generation enhancement in monolayer transition-metal dichalcogenides by using an epsilon-near-zero substrate

“…2D materials have shown to exhibit extremely high nonlinear optical susceptibilities, with several nonlinear optical effects observed, including second [5][6][7][8][9][10] and third 9,11,12 harmonic generation (SHG/THG), sum-frequency generation 13 , four-wave mixing [13][14][15] , and high-harmonic generation [16][17][18] . This makes frequency conversion in 2D materials extremely promising, with potential applications to ultrafast pulse characterization 19 , alloptical wavelength conversion for telecommunications 4 , optical imaging 7,13 , quantum information processing 20,21 , nanoscale lightsources 22,23 , among others. In addition, SHG and THG have proven to be a key technique for crystal orientation and characterization of fundamental material properties 12,24 .…”