6 papers · 1 filter
The role of angular slit number and angular slit width on the OAM spectrum
Jayson P. Cabanilla, Nathaniel Hermosa
The uncertainty principle sets the limit for simultaneous measurements of position and momentum, and its angular analogue is realized through angular diffraction. When a beam is sp…
Proper scaling for triangular aperture in OAM measurement
Dina Grace C. Banguilan, Nathaniel Hermosa
A standard triangular aperture for measuring the orbital angular momentum (OAM) of light by diffraction usually has a fixed and limited radius R. This possesses a crucial issue sin…
Probing higher OAM of LG beams via diffraction through translated single slit
Jadze Princeton Narag, Nathaniel Hermosa
Laguerre-Gaussian (LG) beams carry orbital angular momentum (OAM) as a consequence of a singularity in their phase profile. In this work, we probe the OAM of LG beams using a movab…
A paraxial cloak with four lenses of different focal lengths
Miguel Revilla, Joshua Cesar Lorenzo, Nathaniel Hermosa
We demonstrate cloaking with four lenses of different focal lengths. To achieve this, we compute the separation distances between lenses such that the effective ABCD matrix is equa…
Goos-Hänchen shifts due to 2D materials with complex conductivity
Niña Angelica F. Zambale, Jenny Lou B. Sagisi, Nathaniel P. Hermosa
We investigate theoretically the Goos-Hänchen (GH) shift of a p-polarized terahertz beam incident on a 2D material surface with complex conductivity. Taking monolayer graphene to b…
Frequency conversion of structured light
Fabian Steinlechner, Nathaniel Hermosa, Valerio Pruneri +1
We demonstrate the coherent frequency conversion of structured light, optical beams in which the phase varies in each point of the transverse plane, from the near infrared (803nm)…