137 citations · 288 across the 11 of their papers we have counts for
11 papers
Emerging optical spin and chirality by 3D evanescent field coupling
Liang Fang, Jian Wang
Optical spin and chirality play key roles in engineering photonic emission and light-matter interactions. Here we show that 3D evanescent coupling of guided modes by strongly confi…
Intrinsic transverse spin angular momentum of fiber eigenmodes
Liang Fang, Jian Wang
We study the transverse spin angular momentum of fiber eigenmodes. As an intrinsic property of fiber eigenmodes, it becomes considerable in optical nanofibers and, especially, incr…
A vectorial Doppler effect with spatially variant polarized light fields
Liang Fang, Zhenyu Wan, Andrew Forbes +1
The Doppler effect of light was implemented by interference with a reference wave to infer linear velocities in early manifestations, and more recently lateral and angular velociti…
Structured light interferometry
Liang Fang, Zhenyu Wan, Jian Wang
Optical interferometry has made tremendous development in fundamentals and applications of light. Traditional optical interferometry using simplex plane phase light just allows one…
Full-Vectorial Mode Coupling in Optical Fibers
Liang Fang, Jian Wang
Optical full vectorial modes have closely attracted much attention because of their unique optical features and thus may develop the fundamental researches and new functionalities…
Mode conversion and orbital angular momentum transfer among multiple modes by helical gratings
Liang Fang, Jian Wang
The coupling feature of helical gratings (HGs) has been studied on flexible conversion between two orbital angular momentum (OAM) modes by both the transverse and longitudinal modu…
All-fiber polarization-manageable directional couplers
Liang Fang, Jian Wang
Flexible management of light polarization is necessary to develop the technologies of optical fiber communications. However, it is still a great challenge to manipulate optical pol…
Sharing a common origin between the rotational and linear Doppler effects
Liang Fang, Miles J. Padgett, Jian Wang
The well-known linear Doppler effect arises from the linear motion between source and observer, while the less well-known rotational Doppler effect arises from the rotational motio…
Optical angular momentum derivation and evolution from vectorial field superposition
Liang Fang, Jian Wang
Optical intrinsic angular momentum can be regarded as derivation from spatial superposition of optical vector fields embodied by spinning or and spiraling the electric field vector…
Flexible generation conversion and exchange of fiber guided orbital angular momentum modes using helical gratings
Liang Fang, Jian Wang
By exploiting helical gratings (HGs), we propose and simulate flexible generation, conversion and exchange of fiber guided orbital angular momentum (OAM) modes. HGs can enable the…
Interpreting mode degeneracy lifting in high-index-contract optical fibers as spin-orbit interaction or Imbert-Fedorov shift of orbital angular momentum modes
Liang Fang, Jian Wang
We present a visual interpretation of fiber mode degeneracy lifting as SOI (Imbert-Fedorov shift) of OAM modes in a ray picture, and the analytical results are verified by comparin…