Polariton condensation in the yellow part of visible spectrum from a planar organic semiconductor microcavity containing molecular dye bromine‐substituted boron‐dipyrromethene is observed. This study provides experimental fingerprint polariton under nonresonant optical excitation, including nonlinear dependence emission intensity and wavelength blueshift with increasing excitation density, single pulse dispersion imaging, real space interferometry. The latter two allow to visualize collapse...

Artificial lattices of coherently coupled macroscopic states are at the heart applications ranging from solving hard combinatorial optimisation problems to simulating complex many-body physical systems. The size and complexity scales with extent coherence across lattice. Although fundamental limit spatial depends on nature couplings lattice parameters, it is usually engineering constrains that define system. Here, we engineer polariton condensate active control arrangement density result in...

We demonstrate spontaneous formation of a nonlinear vortex cluster state in microcavity exciton-polariton condensate with time-periodic sign flipping its topological charges at the GHz scale. When optically pumped ring-shaped nonresonant laser, trapped experiences intricate high-order mode competition and fractures into two distinct trap levels. The resulting interference leads to robust density beatings periodic appearance orderly arranged phase singularities. Our work opens new...

Extremely high coherence time and, thus, ultranarrow spectral linewidths make it possible to resolve magnetically induced \textmu{}eV fine-energy shifts in trapped exciton-polariton condensates. The continuous control over the polariton confinement enable authors here explore two operation regimes: (1) full parametric screening of Zeeman splitting and (2) inversion regime. transition from one range other occurs by adjusting size optical trap, which controls strength polariton-polariton...

Planar metamaterials represent a powerful paradigm of optical engineering, which enables one to control the flow light across structured material interfaces in absence high-order diffraction modes. We report on discovery that planar certain type, formed by nanopatterned metal films, respond differently spatially coherent and incoherent light, enabling robust speckle-free discrimination between different degrees coherence. The effect has no direct analogue natural materials may find...

Organic semiconductors are a promising platform for ambient polaritonics. Several applications, such as polariton routers, and many-body condensed matter phenomena currently hindered due to the ultra-short lifetimes in organics. Here, we employ single-shot dispersion imaging technique, using 4 ns long non-resonant excitation pulses, study lasing λ/2 planar organic microcavity filled with BODIPY-Br dye molecules. At power threshold density of 1.5 MW/cm2, observe transition quasi-steady state,...

Abstract Vorticity is a key ingredient to broad variety of fluid phenomena, and its quantised version considered be the hallmark superfluidity. Circulating flows that correspond vortices large topological charge, termed giant vortices, are notoriously difficult realise even when externally imprinted, they unstable, breaking into many single charge. In spite theoretical proposals on formation stabilisation in ultra-cold atomic Bose-Einstein condensates other superfluid systems, their...

David G. Lidzey, Pavlos Lagoudakis, and co-workers demonstrate room temperature polariton condensation in the yellow part of visible spectrum from a planar organic semiconductor microcavity containing molecular dye BODIPY-Br article number 1700203. Single-shot dispersion imaging is exploited to observe collapse energy distribution blueshift emission wavelength upon reaching threshold.

The paper describes a reactor suitable for high pressure, particularly supercritical fluid, electrochemistry and electrodeposition at pressures up to 30 MPa 115°C. incorporates two key, new design concepts; plastic vessel the use of o-ring sealed brittle electrodes. These innovations widen what can be achieved with fluid electrodeposition. suitability electroanalytical experiments is demonstrated by studies voltammetry decamethylferrocene in difluromethane deposition Bi. application...

Abstract Tunable polariton lasing is demonstrated from an all‐inorganic CsPbBr 3 perovskite microcrystal plate over 23 nm in the green part of optical spectrum, operating at room temperature. The emission spectrum controlled by adjusting effective length a multi‐ planar microcavity, whilst observing hallmarks condensation under non‐resonant excitation. Furthermore, simultaneous observed into two non‐degenerate lower branches orthogonal polarizations induced anisotropy crystal.

We demonstrate successful operation of a continuous flow liquid helium magnetic cryostat (Oxford Instruments, Microstat MO) in closed cycle using modular cryocooling system (ColdEdge Technologies, Stinger). For the operation, we have developed custom gas handling manifold and show that despite lower cooling power cryocooler with respect to nominal requirements, can be operated stable manner. provide design manifold, detailed analysis performance terms times, field ramping rates vibrations at...

We report on a discovery that homogeneous metallic non-diffracting metasurfaces of certain type allow robust speckle-free discrimination between different degrees the spatial coherence light. The effect has no direct analogue in natural materials and been previously unseen metamaterials (and particular). It results qualitative change optical response metasurfaces, whereby their transmission reflection) spectra acquires spectral components, depending whether nano-structures are illuminated...

Summary form only given. We report on a discovery that homogeneous metallic non-diffracting metasurfaces of certain type respond differently to spatially coherent and incoherent light, enabling robust speckle-free discrimination between different degrees coherence. The effect has no direct analogue in natural optical materials may find applications compact metadevices enhancing imaging, vision, detection, communication metrology. Here we describe investigate an intriguing phenomenon whereby...

Summary form only given. We report on a discovery that homogeneous metallic non-diffracting metamaterials of certain type respond differently to spatially coherent and incoherent light, enabling robust speckle-free discrimination between different degrees coherence. The effect has no direct analogue in natural optical materials may find applications compact metadevices enhancing imaging, vision, detection, communication metrology. Here we identify investigate class trivial planar...

We report on a discovery that homogeneous plasmonic non-diffracting metasurfaces of certain type respond differently to spatially coherent and incoherent light, enabling robust speckle-free discrimination between different degrees coherence. The effect has no direct analogue in natural optical materials may find applications compact metadevices enhancing imaging, vision, detection, communication metrology.

Strongly coupled organic microcavities are up-and-coming material systems for ambient polaritonics. A broad range of suitable materials made possible the experimental observation polariton lasing across whole visible range, as well device-concepts ranging from ultra-fast transistors and all-optical logic gates to single-photon switching, all at room temperature under conditions. Unlike case inorganic semiconductor microcavities, where continuous-wave excitation allows replenishment particle...

Compact optical elements capable of admitting/rejecting light from a specific direction(s) are key components integrated systems for all-optical imaging processing, wavefront manipulation, communication in turbid media and metrology (and LIDARs particular). The existing solutions based on spatially dispersive structures, such as photonic crystal slabs, resonant gratings, perforated films exhibiting extraordinary transmission, all suffer diffraction into multipole orders, while angular...