Room-temperature ultrasensitive photon-level detection in the subterahertz frequency regime
Figure 1 shows the experimental setup for detecting frequency up-conversion of sub-THz waves. The pump light source was…
An experimental demonstration of irreversible mesoscopic carrier transport phenomena in InGaN quantum wells
C-mode measurement The 2-probe correlation measurements were preceded by local PL spectroscopy over a 9.6 μm × 9.6 μm area…
Controlled angular correlations and polarization speckle in scattering birefringent films
A transverse spatially random monochromatic electric field vector, E(r,t), is composed of two mutually orthogonal polarization components \(\mathrm…
Ultrafast space-time optical merons in momentum-energy space
Theory of space-time merons in momentum-energy space Skyrmions are represented by a continuous three-component unit vector field n(r) = (nx(r), ny(r), nz(r))…
Optimization of absorption coefficient of quantum dot structures for infrared spectroscopy
The basic cell of the proposed QD structures is made up of multi-layers, modeled here as ten layers,…
Analytical construction and visualization of nonlinear waves in the (2+1) dimensional Kadomtsev-Petviashvili-Sawada-Kotera-Ramani equation with stability analysis
The steps of the improved modified extended Tanh method that were explained in the preceding section will be…
Analog optical computer for AI inference and combinatorial optimization
Experimental set-up The key components of our experimental set-up are shown in Fig. 1a and Extended Data Fig.…
These ‘glass straw’ optical fibres could speed up the Internet
Typical optical fibres consist of thin, solid glass wires. Tweaking the design could allow them to carry more…
Diffractive tensorized unit for million-TOPS general-purpose computing
Jaeger, H., Noheda, B. & van der Wiel, W. G. Toward a formal theory for computing machines made…
Observation of non-Hermitian topology from optical loss modulation
Ozawa, T. et al. Topological photonics. Rev. Mod. Phys. 91, 015006 (2019). CAS Google Scholar Price, H. et…