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By driving ultrafast soliton molecules with an all-optical external perturbation and monitoring their response in real time, a form of spectroscopy of soliton molecules akin to optical spectroscopy of chemical bonds is introduced.
Evgeny Dianov (1936–2019) was a pioneer of fibre-optics research in the former Soviet Union and director of a highly successful research centre in Moscow dedicated to the field.
Semiconductor nanocrystals with efficient tunable emission in the 1,000–1,700 nm window could prove useful for applications in deep biological imaging and sensing.
An amplitude squeezed light source that operates down to 1 kHz frequencies—the lowest squeezing frequency—is generated in nonlinear crystal-based systems. By injecting the squeezed light into a microresonator, the quantum radiation pressure noise is reduced by 1.2 dB.
By exploiting the electro-optic properties of thin-film lithium niobate, an integrated single-waveguide Fourier transform spectrometer with a footprint of <10 mm2 and an operational bandwidth of 500 nm in the near- and short-wavelength infrared is demonstrated.
Unusual photoemission from graphene is explained by the emission of hot electrons. The findings may lead to integrated photonic devices driven by hot-electron emission.
By employing a Doppler cancellation technique, optical frequency synthesis is achieved with stability and accuracy in the 10−20 range within 100 s. An offset between two optical frequency combs phase-locked at 1,542 nm is obtained as 5.4 × 10−21 at 1,063 nm within 105 s.
The occurrence of Bell non-locality, observations that cannot be explained in terms of local influences, is one of the most remarkable features of quantum theory. A new test of non-locality, tailored for quantum networks, has now been implemented in a network with two independent quantum sources.
Higher-order topological states that are robust against certain classes of disorder and pinned to lattice corners are now observed in photonics platforms.
Responses to high-intensity mid-infrared laser light are theoretically investigated in the Haldane system. It is found that the primary electronic response, optical tunnelling and high-harmonic emission are sensitive to the topological phase of matter.
Parity–time symmetry in second quantization is demonstrated in an integrated non-Hermitian coupled waveguide structure. A counterintuitive shift of the position of the Hong–Ou–Mandel dip is observed in integrated lossy waveguide structures.
Front-induced transitions have been used in dispersion-engineered waveguides for frequency conversion, optical delays, and bandwidth and pulse duration manipulation. This Review provides a theoretical description of the subject and highlights the potential for light manipulation in guided optics.
Father of the semiconductor laser, Nobel Prize laureate and director of the Ioffe Institute in St Petersburg, Zhores Alferov was a much-loved scientist and educator whose research changed the modern world.
Using graphene as the ‘metal’ layer can increase the localization accuracy of metal-induced energy transfer, enabling axial localization of single emitters and measurement of the thickness of lipid bilayers with ångström accuracy.
The quantum-delayed choice experiment is implemented with multiple entangled photons under Einstein’s locality condition. The wave–particle quantum superposition is realized by controlling the relative phase between the wave and particle states.
A violation of bilocal inequality is demonstrated with two truly independent light sources delivering entanglements to three nodes. To this end, the locality, measurement independence and quantum source independence loopholes are closed simultaneously.
A phase-control technique based on the use of fast one-dimensional (1D) spatial light modulators and a 1D-to-2D transformation enables high-speed wavefront measurements and manipulation in complex media, facilitating real-time applications such as imaging in live tissue.
