Results 281 to 290 of about 6,488,304 (373)

From Two‐Photon Grayscale Lithography to Scalable Replication: Enabling Complex Aspherical Micro‐Optics for Mass Production

open access: yesAdvanced Optical Materials, EarlyView.
This study presents the replication of micro‐optics fabricated by two‐photon polymerization grayscale lithography via electroplating and injection molding, enabling mass production without loss of precision. A diffractive aspherical micro‐lens array is fabricated and replicated, and its performance is compared before and after replication ...
Stefan Wagner   +7 more
wiley   +1 more source

Flat Optics for Polarization Structure Engineering from 2D to 3D

open access: yesAdvanced Optical Materials, EarlyView.
Metasurfaces have transformed polarization control by enabling precise engineering of complex polarization structures. This review explores their evolution from generating 2D polarization structures to shaping fully 3D polarization fields. By unlocking the unprecedented control over the polarization and spectral information of light, these advances ...
Buxiong Qi, Yan Li, Xianzhong Chen
wiley   +1 more source

Generalized Heterodyne Interferometry in Kerr Materials

open access: yesAdvanced Photonics Research, EarlyView.
Interferometry, combined with heterodyne detection, enables simultaneous measurement of light amplitude and phase. This work applies these methods to study nonlinear phase shifts from the optical Kerr effect during laser pulse propagation. Results show the nonlinear index is straightforward to retrieve at low phases, but at higher powers, pulse shape ...
Arnaud Rogemont   +3 more
wiley   +1 more source

Floquet‐Engineered Noise‐Resilient Terahertz Receiver with Modular Phased Array Architecture for Scalable Chip‐Scale Communication

open access: yesAdvanced Photonics Research, EarlyView.
Overcoming the bandwidth, latency, and power constraints of wired interconnects in multicore processing units, this work introduces a terahertz wireless solution featuring a dual‐carrier modular phased‐array transmitter and a novel 2D semiconductor quantum‐well nanoreceiver.
Kosala Herath   +5 more
wiley   +1 more source

Advancing Clinical Medicine with Raman Spectroscopy: Current Trends and Future Perspectives

open access: yesAdvanced Photonics Research, EarlyView.
Raman spectroscopy and microscopy may become excellent tools in clinical medicine, including hematology, oncology, infectious diseases, neurology, gastroenterology, reproductive medicine, rheumatology, and cardiovascular research. However, many challenges such as signal interference, standardization issues, and limited clinical application need to be ...
Jiří Bufka   +5 more
wiley   +1 more source

Numerical and Experimental Methods for Estimating the Propagation Loss in Microphotonic Waveguides

open access: yesAdvanced Photonics Research, EarlyView.
Finite‐element finite‐difference time domain, eigenmode‐expansion, and volume‐current simulations are benchmarked against cut‐back, ring‐resonator, and OFDR measurements to quantify waveguide propagation loss in integrated photonic circuits. Scattering, absorption, leakage, and back‐reflection contributions are dissected; error sources are ranked; and ...
Francesco Dell’Olio   +4 more
wiley   +1 more source

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