In this paper, we review the generation of vortex beams carrying orbital angular momentum
in the microwave domain. We firstly present the theory of Laguerre–Gaussian beams where …

The maturity of fields such as optical physics and quantum optics has brought with it a new
era where the photon represents a promising information resource. In the past few years …

The visualization of transparent phase objects such as living cells and tissues plays an
important role in biological research. Transparency and invisibility caused by weak …

Among the optical degrees of freedom, the orbital angular momentum of light provides
unique properties, including mechanical torque action, which has applications for light …

We present a weak measurement protocol that permits a sensitive estimation of angular
rotations based on the concept of weak-value amplification. The shift in the state of a pointer …

In the past decade, optical orbital angular momentum (OAM) has entered the field of
plasmonics in the form of surface-confined vortices, generating vast interest. Here we give …

The recent extension of the orbital angular momentum (OAM) concept from optical to
microwave frequencies has led some researchers to explore how well established antenna …

Interrogating an object with a light beam and analyzing the scattered light can reveal
kinematic information about the object, which is vital for applications ranging from …

Electromagnetic vortex imaging based on orbital angular momentum (OAM) modulation has
the ability of azimuthal resolution without relative motion, which needs various OAM modes …

Future generations of gravitational-wave detectors (GWD) are targeting an effective quantum
noise reduction of 10 dB via the application of squeezed states of light. In the last joint …