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Probing surface and interface structure using optics
(2010)
Optical techniques for probing surface and interface structure are introduced and recent developments in the field are discussed. These techniques offer significant advantages over conventional surface probes: all pressure ...
Rapid and Reliable Calibration of Laser Beam Deflection System for Microcantilever-Based Sensor Setups
(2012)
Cantilever array-based sensor devices widely utilise the laser-based optical deflection method for measuring static cantilever deflections mostly with home-built devices with individual geometries. In contrast to scanning ...
Generation of continuously tuneable fractional optical orbital angular momentum using internal conical diffraction
(2010)
Abstract: When a left-circularly polarised Gaussian light beam, which has
spin angular momentum (SAM) Jsp = ?? = 1? per photon, is incident along
one of the optic axes of a slab of biaxial crystal it undergoes internal ...
Conical diffraction of linearly polarised light controls the angular position of a microscopic object
(2010)
Conical diffraction of linearly polarised light in a biaxial crystal produces a beam with a crescent-shaped intensity profile. Rotation of the plane of polarisation produces the unique effect of spatially moving the ...
Optical reflectance anisotropy of buried Fe nanostructures on vicinal W(110)
(2007)
The optical anisotropy of Au protected Fe layers grown on a vicinal W(110) surface has been investigated using reflectance anisotropy spectroscopy (RAS). Iron nanostripes formed at submonolayer coverage, as well as Fe ...
Quantum theory of multimode polariton condensation
(2014)
We develop a theory for the dynamics of the density matrix describing a multimode polariton condensate.
In such a condensate several single-particle orbitals become highly occupied, due to stimulated scattering from
reservoirs ...
Single mode lasers based on slots suitable for photonic integration
(2011)
The re-growth free single mode lasers based on etched slots suitable for photonic integration are presented in this paper. The fabricated 650?m long laser exhibits a threshold current and a slope efficiency of about 32mA ...
Generation of a radially polarized light beam using internal conical diffraction
(2011)
Using a combination of internal conical diffraction and Mach-Zehnder interferometry we have theoretically and experimentally demonstrated an efficient new technique for the conversion of a linearly polarized Gaussian laser ...
Influence of intra-ensemble energy transfer on the properties of nanocrystal quantum dot structures and devices
(2010)
The impact of intra-ensemble Forster resonant energy transfer (FRET) on the optical properties of monodispersed quantum dot (QD) monolayers and a donor/acceptor FRET bilayer structure are presented. The QD structures are ...