LCP vortex half-waveplateRadially polarized beamMOPAHigh efficiency and High purityIn this paper, we demonstrate the generation of a radially polarized beam (RPB) with a maximum average output power of 20 W by our self-developed nanosecond pulsed ytterbium (Yb)-doped fiber MOPA system. The ...
9b). The polarization-resolved mode images were captured after placing a half-wave plate and polarizing beamsplitter (for linearly polarized images) or a quarter-wave plate, half-wave plate and polarizing beamsplitter (for circularly polarized images) in front of the infrared camera (Fig. 4f–h...
OL: the objective lens, BFP: the back focal plane, HWP: half-wave plate, P: polarizer, SLM: spatial light modulator, M: mirror, L1 - L2: lenses, CCD: charge-coupled device. (b, e) Measured on-axis intensity distributions for the linearly polarized component of the emitted superposition...
The meta-pillar, characterized by axis lengths of 100 nm and 260 nm, is designed as a half wave-plate to convert the spin of the two CP beams. The CP conversion efficiency of this meta-pillar as a function of wavelength, simulated using the commercial software COMSOL, is represented by ...
We present a simple method to measure the topological charge and index of VVOFs by using a space-variant half-wave plate (SV-HWP). The geometric phase grating of the SV-HWP diffracts a VVOF into ±1 orders with orthogonally left- and right-handed circular polarizations. By inserting a ...
Opus 1064) with a maximum power output of 3 W, passes through a half-wave plate (\(\lambda /2\)), followed by a linear polarizer (P) to adjust the beam’s linear polarization direction. The beam is then redirected by mirrors (\(M_1\) and \(M_2\)) and expanded using a ...
wave plates and half-wave plates, we can effectively transform incident plane waves into vector beams with distinct topological charges and polarization ... X Ding,Z Li,J Ren,... - 《Chinese Optics Letters》 被引量: 0发表: 2024年 Design of broadband terahertz vector and vortex beams: II....
In short, a continuous wave laser beam (λ = 1064 nm, Laser Quantum, Mod. Opus 1064) is incident on a half-wave plate (λ/2) followed by a linear polarizer (P), which lets the direction of the linear polarization of the beam to be set. The laser beam is guided by mirrors (M1 ...
As the SLM only modulates horizontally polarized light, the circularly polarized light of the vortex laser array generated from q-plate arrays is converted into horizontally polarized light using a combination of quarter- and half-waveplates (not shown in Fig. 2a). A pinhole is used to block ...
Neglecting the absorption and loss of the element, for a pure circularly polarized incident beam, the conversion efficiency reaches 100% when the retardation is δ=π, working as a half-wave plate. The right-hand circular polarization was totally converted to left-hand circular polarization via ...