One of the key frameworks for developing the theory of light–matter interactions in modern
optics and photonics is quantum electrodynamics (QED). Contrasting with semiclassical …

Optical tweezers, formed by a highly focused laser beam, have intriguing applications in
biology and physics. Inspired by molecular rotors, numerous optical beams and artificial …

Whether in art or for QR codes, images have proven to be both powerful and efficient
carriers of information. Spatial light modulators allow an unprecedented level of control over …

We experimentally demonstrate an efficient information transmission technique using
Laguerre Gaussian (LG) modes. This technique is based on multiplexing and demultiplexing …

The linear Doppler shift is familiar as the rise and fall in pitch of a siren as it passes by. Less
well known is the rotational Doppler shift, proportional to the rotation rate between source …

Spatial shaping of light beams has led to numerous new applications in fields such as
imaging, optical communication, and micromanipulation. However, structured radiation is …

In line-of-sight communication systems, accurate alignment between the transmitter and
receiver is important to guarantee sufficient signal power at the receiver. Such alignment is …

We present experimental evidence of photon droplets in an attractive (focusing) nonlocal
nonlinear medium. Photon droplets are self-bound, finite-sized states of light that are robust …

Beyond the possibilities of linear transformations in polarization space, whose
dimensionality is constrained by limited orthogonal states, we propose a technique for …

Travelling waves, such as light and sound, can carry angular momentum. Orbital angular
momentum (OAM) is one of the components which is determined by the helicity of the phase …