Results 61 to 70 of about 389,331 (298)
Optical conductivity with holographic lattices [PDF]
Journal of High Energy Physics, 2012 We add a gravitational background lattice to the simplest holographic model of matter at finite density and calculate the optical conductivity. With the lattice, the zero frequency delta function found in previous calculations (resulting from translation invariance) is broadened and the DC conductivity is finite.
Horowitz, Gary T +2 more
openaire +3 more sources
Advanced Functional Materials, EarlyView.A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar +8 more
wiley +1 more source
Optical signatures of lattice strain in chemically doped colloidal quantum wells
Nature CommunicationsLattice strain plays a vital role in tailoring the optoelectronic performance of colloidal nanocrystals (NCs) with exotic geometries. Although optical identifications of lattice strain in irregular-shaped NCs or hetero-structured NCs have been well ...
Junhong Yu +2 more
doaj +1 more source
Polarizability of ultracold molecules in the rovibrational ground state of
New Journal of Physics, 2015 We study, both theoretically and experimentally, the dynamical polarizability $\alpha (\omega )$ of ${\mathrm{Rb}}_{2}$ molecules in the rovibrational ground state of ${a}^{3}{\Sigma }_{u}^{+}$ .
Markus Deiß +5 more
doaj +1 more source
A study of atom localization in an optical lattice by analysis of the scattered light
, 1997 We present an experimental study of a four beam optical lattice using the light scattered by the atoms in the lattice. We use both intensity correlations and observations of the transient behavior of the scattering when the lattice is suddenly switched ...
Aspect, Alain +5 more
core +2 more sources
Advanced Functional Materials, EarlyView.The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal +10 more
wiley +1 more source
Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications
Advanced Functional Materials, EarlyView.Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai +8 more
wiley +1 more source
Effective Dirac Hamiltonian for anisotropic honeycomb lattices: optical properties
, 2015 We derive the low-energy Hamiltonian for a honeycomb lattice with anisotropy in the hopping parameters. Taking the reported Dirac Hamiltonian for the anisotropic honeycomb lattice, we obtain its optical conductivity tensor and its transmittance for ...
Naumis, Gerardo G., Oliva-Leyva, M.
core +1 more source
Anderson Lattice Description of Photoassociation in an Optical Lattice [PDF]
, 2005 We consider atomic mixtures of bosons and two-component fermions in an optical lattice potential. We show that if the bosons are in a Mott-insulator state with precisely one atom per lattice, the photoassociation of bosonic and fermionic atoms into ...
Meystre, Pierre, Miyakawa, Takahiko
core +1 more source
Perfect Off-Axis Optical Vortex Lattice
PhotonicsOptical vortex lattices (OVLs) with diverse modes show potential for a wide range of applications, such as high-capacity optical communications, optical tweezers, and optical measurements.
Yuping Tai +5 more
doaj +1 more source