95 citations · 97 across the 8 of their papers we have counts for
11 papers
Tracking and controlling monolayer water in gold nanogaps using extreme plasmonic spectroscopy
Elle W. Wyatt, Sarah May Sibug-Torres, Rakesh Arul +5
Nanogaps are ubiquitous across science, confining molecules and thus changing chemistries which influence many areas such as catalysis, corrosion, photochemistry, and sensing. Howe…
Efficient short-wave infrared upconversion by self-sensitized holmium-doped nanoparticles
Rakesh Arul, Zhao Jiang, Xinjuan Li +5
Photon upconversion, combining several low-energy photons to generate one high-energy photon is of wide interest for biomedical, catalytic and photonic applications. Lanthanide-dop…
Raman-probing the local ultrastrong coupling of vibrational plasmon-polaritons on metallic gratings
Rakesh Arul, Kishan Menghrajani, Marie S. Rider +3
Strong coupling of molecular vibrations with light creates polariton states, enabling control over many optical and chemical properties. However, the near-field signatures of stron…
Anti-Stokes Photoluminescence in Monolayer WSe Activated by Plasmonic Cavities through Resonant Excitation of Dark Excitons
Niclas S. Mueller, Rakesh Arul, Ashley P. Saunders +9
Anti-Stokes photoluminescence (PL) is light emission at a higher photon energy than the excitation, with applications in optical cooling, bioimaging, lasing, and quantum optics. He…
Direct Linearly-Polarised Electroluminescence from Perovskite Nanoplatelet Superlattices
Junzhi Ye, Aobo Ren, Linjie Dai +26
Polarised light is critical for a wide range of applications, but is usually generated by filtering unpolarised light, which leads to significant energy losses and requires additio…
Accelerated Molecular Vibrational Decay and Suppressed Electronic Nonlinearities in Plasmonic Cavities through Coherent Raman Scattering
Lukas A. Jakob, William M. Deacon, Rakesh Arul +3
Molecular vibrations and their dynamics are of outstanding importance for electronic and thermal transport in nanoscale devices as well as for molecular catalysis. The vibrational…
Giant mid-IR resonant coupling to molecular vibrations in sub-nm gaps of plasmonic multilayer metafilms
Rakesh Arul, David Benjamin-Grys, Rohit Chikkaraddy +5
Nanomaterials capable of confining light are desirable for enhancing spectroscopies such as Raman scattering, infrared absorption, and nonlinear optical processes. Plasmonic superl…
Theory of strong coupling between molecules and surface plasmons on a grating
Marie S Rider, Rakesh Arul, Jeremy J Baumberg +1
The strong coupling of molecules with surface plasmons results in hybrid states which are part molecule, part surface-bound light. Since molecular resonances may acquire the spatia…
Single-molecule mid-IR detection through vibrationally-assisted luminescence
Rohit Chikkaraddy, Rakesh Arul, Lukas A. Jakob +1
Room temperature detection of molecular vibrations in the mid-infrared (MIR, =3-30m) has numerous applications including real-time gas sensing, chemical reactivity, medical…
Understanding the chemical mechanism behind photo-induced enhanced Raman spectroscopy
Junzhi Ye, Rakesh Arul, Michel K. Nieuwoudt +3
Photo-Induced Enhanced Raman Spectroscopy (PIERS) is a new surface enhanced Raman spectroscopy (SERS) modality with an order-of-magnitude Raman signal enhancement of adsorbed analy…
LIPSS-Sticks: Laser induced double self organization enhances the broadband light harvesting of TiO2 nanotube arrays
Rakesh Arul, Junzhe Dong, M. Cather Simpson +1
Sub-wavelength laser induced periodic surface structures (LIPSS-Sticks) created by ultrashort pulsed laser irradiation on the surface of titanium are used for the first time to tem…