research

We are interested in and have been working on the following topics:

Electronic and Photonic Nanomaterials.
Control of radiative processes of quantum emitters, including quantum dots and organic molecules, using photonic and plasmonic nanostructures for optical processing and sensing.
Monolayer transition metal dichalcogenides (MoS₂, WSe₂, Si₂Te₃, etc...) for optoelectronics and nanophotonics.
Light generation, manipulation and detection at single photons level.
Semiconductor Nanowires and Nanowire Heterostructures for Optoelectronics, Nanophotonic and Photovoltaic applications.
Semiconductor Quantum Dots and Nanocrystals.

Representative research efforts by published Figures:

I. Light-matter interaction at the nanoscale

Plasmon-assisted lasing from a single mode fiber tip

Optics Express 28 (11), 16417-16426 (2020)

lasing2final_720.mp4

Extreme Sub-Wavelength Light Confinement

Nanoscale Adv., 2020, Advance Article

DOI: 10.1039/D0NA00262C

Active tuning single QD emission on a chip

Optics Express, 20(19), pp. 21758-21765 (2012).

Ultrafast non-local control of spontaneous emission

Nature Nanotechnology 9, 886-890 (2014)

Spontaneous emission control using plasmonic nanopatch antennas

Nature Communications 6, 7788 (2015)

Spontaneous emission control using photonic crystals

Appl. Phys. Lett. 100, 061122 (2012)

Ultrafast single photon sources

Nano letters, 2015 DOI: 10.1021/acs.nanolett.5b03724

Plasmon nanolasers

Nature Communications 6 6939-6945 (2015)

Spontaneous emission control using electro-mechanics

Appl. Phys. Lett. 101, 091106 (2012)

On chip photon detection and auto-correlation

Optics Express 21, 11162 (2013)

Control of Optical Processes in 2D Semiconductors

Nano Lett., 2015 15 (5), pp 3578-3584

Metasurface perfect absorbers

Advanced Materials, 27, 8028-8034 (2015) DOI:10.1002/adma.201503281

II. Materials Science

Core-shell semiconductor nanowires polarized photoluminescence imaging (1D)

Nano Letters 7 588-595 (2007).

Semiconductor nanowire photoluminescence polarization engineering (1D)

Nano Lett. 10, 2927-2933 (2010)

Wurtzite and Zinc Blende crystal phase control in III-V semiconductor nanowires (1D)

Applied Physics Letters 91 263104 (2007)

Semiconductor quantum dots (0D)

Applied Physics Letters 87, 183104 (2005).

Exciton dynamics in dichalcogenide monolayers (2D)

Sci Rep. 2016; 6: 22414.

Ultrafast non-linear probe the exciton dynamics of transition metal dichalcogenide monolayers (2D)

Physical Review B 95 (7), 075428 (2017)

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