Optical/Optothermal trapping/Brownian motion

Emergence of Directional Rotation in an Optothermally Activated Colloidal System
ACS Photonics, 10, 11, 4006–4013 (2023) [arxiv]

When Plasmonic Colloids Meet Optical Vortices - A Brief Review

Indian Journal of Pure & Applied Physics; 61, 589-600 (2023) [arxiv]

Opto-thermoelectric Trapping of Fluorescent Nanodiamonds on Plasmonic Nanostructures.

Optics Letters, 48, 2937-2940 (2023). [arxiv]

Roadmap for Optical Tweezers

J. Phys. Photonics 2023, 5 (2), 022501. [arxiv]

Optothermal Evolution of Active Colloidal Matter in a Defocused Laser Trap.

ACS Photonics 2022, 9 (10), 3440–3449. [arxiv]

Single Molecule Surface Enhanced Raman Scattering in a Single Gold Nanoparticle-Driven Thermoplasmonic Tweezer.

J. Phys. Chem. Lett. 2021, 12 (49), 11910–11918. [arxiv]

Optothermal Pulling, Trapping, and Assembly of Colloids Using Nanowire Plasmons.

Soft Matter 2021, 17 (48), 10903–10909. [arxiv]

Large-Scale Optothermal Assembly of Colloids Mediated by a Gold Microplate.

J. Phys.: Condens. Matter 2020, 32 (32), 324002. [arxiv]

Large-Scale Dynamic Assembly of Metal Nanostructures in Plasmofluidic Field.

Faraday Discuss. 2016, 186 (0), 95–106. [arxiv]

Plasmofluidic Single-Molecule Surface-Enhanced Raman Scattering from Dynamic Assembly of Plasmonic Nanoparticles.

Nat Commun 2014, 5 (1), 4357. [arxiv]

OT/BM

Structured Light/Orbital angular momentum/optical vortex

1. Simultaneous Detection of Spin and Orbital Angular Momentum of Light through Scattering from a Single Silver Nanowire.

Laser & Photonics Reviews 2022, 2200049. [arxiv]

2. Experimental Observation of Transverse Spin of Plasmon Polaritons in a Single Crystalline Silver Nanowire.

Appl. Phys. Lett. 2021, 119 (16), 161108. [arxiv]

3. Focused Linearly-Polarized-Light Scattering from a Silver Nanowire: Experimental Characterization of the Optical Spin-Hall Effect.

Phys. Rev. A 2021, 103 (1), 013520. [arxiv]

4. Optical Orbital Angular Momentum Read-Out Using a Self-Assembled Plasmonic Nanowire.

ACS Photonics 2019, 6 (1), 148–153.

5. Spin-Hall Effect in the Scattering of Structured Light from Plasmonic Nanowire.

Opt. Lett., OL 2018, 43 (11), 2474–2477. [arxiv]

SL/OAM/OV

Light-assisted assembly and pattern formation in soft matter

1. Large-Scale Optothermal Assembly of Colloids Mediated by a Gold Microplate.

J. Phys.: Condens. Matter 2020, 32 (32), 324002. [arxiv]

2. Large-Scale Dynamic Assembly of Metal Nanostructures in Plasmofluidic Field.

Faraday Discuss. 2016, 186 (0), 95–106. [arxiv]

3. Plasmofluidic Single-Molecule Surface-Enhanced Raman Scattering from Dynamic Assembly of Plasmonic Nanoparticles.

Nat Commun 2014, 5 (1), 4357. [arxiv]

Assembly

SM-SERS

Single-molecule SERS fluctuations/statistical optics

1. Single Molecule Surface Enhanced Raman Scattering in a Single Gold Nanoparticle-Driven Thermoplasmonic Tweezer.

J. Phys. Chem. Lett. 2021, 12 (49), 11910–11918. [arxiv]

2. Plasmofluidic Single-Molecule Surface-Enhanced Raman Scattering from Dynamic Assembly of Plasmonic Nanoparticles.

Nat Commun 2014, 5 (1), 4357. [arxiv]

3. Single-Molecule Surface-Enhanced Raman Scattering Sensitivity of Ag-Core Au-Shell Nanoparticles: Revealed by Bi-Analyte Method.

J. Phys. Chem. Lett. 2013, 4 (7), 1167–1171.

Nanowire Plasmonics/Photonics

1. Beaming Elastic and SERS Emission from Bent-Plasmonic Nanowire on a Mirror Cavity.

J. Phys. Chem. Lett. 2021, 12 (28), 6589–6595. [arxiv]

2. Momentum-Resolved Surface Enhanced Raman Scattering from a Nanowire–Nanoparticle Junction Cavity.

Advanced Optical Materials 2019, 7 (15), 1900304. [arxiv]

3. Doughnut-Shaped Emission from Vertical Organic Nanowire Coupled to Thin Plasmonic Film.

Opt. Lett., OL 2018, 43 (4), 923–926. [arxiv]

4. Differential Wavevector Distribution of Surface-Enhanced Raman Scattering and Fluorescence in a Film-Coupled Plasmonic Nanowire Cavity.

Nano Lett. 2018, 18 (1), 650–655.

5. Radiative Channeling of Nanowire Frenkel Exciton Polaritons through Surface Plasmons.

Advanced Optical Materials 2017, 5 (4), 1600873.

6. Plasmon-Controlled Excitonic Emission from Vertically-Tapered Organic Nanowires.

Nanoscale 2016, 8 (31), 14803–14808.

7. Dual-Path Remote-Excitation Surface Enhanced Raman Microscopy with Plasmonic Nanowire Dimer.

Appl. Phys. Lett. 2013, 103 (15), 151114.

8. Evanescent Field-Assisted Intensity Modulation of Surface-Enhanced Raman Scattering from a Single Plasmonic Nanowire.

J. Phys. D: Appl. Phys. 2013, 46 (19), 195107.

9. Propagation of Light in Serially Coupled Plasmonic Nanowire Dimer: Geometry Dependence and Polarization Control.

Appl. Phys. Lett. 2012, 101 (11), 111111.

10. Plasmon Assisted Light Propagation and Raman Scattering Hot-Spot in End-to-End Coupled Silver Nanowire Pairs.

Appl. Phys. Lett. 2012, 100 (4), 043108.

MSphere/WGM

Microsphere photonics/Whispering Gallery Modes

1. Mirror-Coupled Microsphere Can Narrow the Angular Distribution of Photoluminescence from WS2 Monolayers.

Appl. Phys. Lett. 2022, 120 (26), 261109. [arxiv]

2. Sub-Wavelength Plasmon Polaritons Channeling of Whispering Gallery Modes of Fluorescent Silica Microresonator.

Materials Research Bulletin 2021, 142, 111412. [arxiv]

3. Dielectric Microsphere Coupled to a Plasmonic Nanowire: A Self-Assembled Hybrid Optical Antenna.

Advanced Optical Materials 2020, 8 (11), 1901672. [arxiv]

4. Wavevector Distribution of Metal Photoluminescence from a Gold Film Coupled Microsphere Antenna.

J. Opt. 2019, 21 (3), 035002. [arxiv]

5. Vectorial Fluorescence Emission from Microsphere Coupled to Gold Mirror.

Advanced Optical Materials 2018, 6 (22), 1801025. [arxiv]

6. Microsphere-Coupled Organic Waveguides: Preparation, Remote Excitation of Whispering Gallery Modes and Waveguiding Property.

Appl. Phys. Lett. 2013, 103 (3), 031112. [arxiv]

Soft-Photonics Research Group

Respresentative Publications by topics (2010-present)