Results 91 to 100 of about 4,940 (242)

Revealing the Hidden Stress Field and Its Thermal Input Dependence in Femtosecond Laser–Processed Silicon Photonic Chip Substrates via Weak Measurement

Nanophotonics, Volume 15, Issue 13, 13 July 2026.
A novel noncontact method based on weak value amplification enables high‐sensitivity stress mapping of femtosecond laser processed silicon photonic chip substrates. It converts microscale stress into the birefringent phase via the photoelastic effect and reads it out with weak measurement, achieving a 0.37‐kPa detection limit.
Wanshou Sun, Baili Qiu, Jiaming Li, Haibing Xiao, Yafei Yu, Qingmao Zhang   +5 more
wiley   +1 more source

Silicon electro-optically tunable delay line

, 2018
The design of a continuously tunable optical delay line based on a compact graphenebased silicon Bragg grating has been reported. Its performance makes the proposed optical delay line suitable for beamsteering/beamforming for phased array ...
G. Brunetti, C. Ciminelli, Ciminelli, C., D. Conteduca, Dell'Olio, F., Conteduca, D., Armenise, M. N., Brunetti, G., M. N. Armenise, F. Dell’ Olio   +9 more
core   +1 more source

High Extinction Ratio and Broadband Silicon TE-Pass Polarizer Using Subwavelength Grating Index Engineering

IEEE Photonics Journal, 2015
We propose and experimentally demonstrate a novel approach to implement a low-loss, broadband, and compact transverse electric (TE)-pass polarizer on a silicon-on-insulator platform.
Yule Xiong, Dan-Xia Xu, Jens H. Schmid, Pavel Cheben, Winnie N. Ye   +4 more
doaj   +1 more source

Photonic Doping of Epsilon‐Near‐Zero Bragg Microcavities

Nanophotonics, Volume 15, Issue 13, 13 July 2026.
Photonic doping of an epsilon‐near‐zero (ENZ) Bragg microcavity at optical frequencies induces strong magnetic responses from dielectric inclusions, enabling intense field localization, Purcell enhancement, and tunable hybrid Bragg–Mie modes. The platform supports perfect magnetic conductor and epsilon‐and‐mu‐near‐zero regimes, offering opportunities ...
Ali Panahpour, Jussi Kelavuori, Mikko Huttunen   +2 more
wiley   +1 more source

Bend Waveguides on Silicon Nanowire Optical Waveguide (SNOW)

IEEE Photonics Journal, 2011
In a previous work, we reported a novel optical waveguide named silicon nanowire optical waveguide (SNOW), which consists of arrayed silicon nanowires acting like an effective-index medium.
M. Khorasaninejad, S. S. Saini
doaj   +1 more source

Strong Mode Coupling and Maximum Directional Absorption in Reciprocal Bianisotropic Metasurfaces

Nanophotonics, Volume 15, Issue 12, 25 June 2026.
Symmetry breaking in q‐BIC dielectric metasurfaces enables strong electromagnetic coupling between electric and magnetic modes, leading to their hybridization and Rabi‐like splitting. This mechanism produces pronounced reciprocal bianisotropy and dual‐band asymmetric absorption under opposite illumination directions, offering a compact framework for ...
L. M. Máñez‐Espina, B. Amrahi, V. S. Asadchy, A. Díaz‐Rubio   +3 more
wiley   +1 more source

Hot wire CVD deposition of nanocrystalline silicon solar cells on rough substrates

, 2009
In silicon thin film solar cell technology, frequently rough or textured substrates are used to scatter the light and enhance its absorption. The important issue of the influence of substrate roughness on silicon nanocrystal growth has been investigated ...
Rath, J.K., Nanophotonics, Surfaces, Interfaces and Devices, Li, H. B. T., Schropp, R.E.I., Dep Natuurkunde, van der Werf, C.H.M., Afd Nanophotonics   +7 more
core  

Effects of pressure and inter-electrode distance on deposition of nanocrystalline silicon under high pressure conditions

, 2010
Pressure (p) and inter-electrode distance (d) are important parameters in the process of depositing hydrogenated nanocrystalline silicon (nc-Si:H) by very high frequency plasma enhanced chemical vapour deposition (VHF PECVD).
Rath, J.K., Sub Physics of devices begr 1/1/17, Jatindra K. Rath, Liu, Y., Ruud E. I. Schropp, Afd Nanophotonics, Nanophotonics, Goedheer, W.J., Schropp, R.E.I., Arjan D. Verkerk, Dep Natuurkunde, Verkerk, A.D., Yanchao Liu, Wim J. Goedheer   +13 more
core   +1 more source

Ultracompact Electroabsorption Modulators Based on Tunable Epsilon-Near-Zero-Slot Waveguides

IEEE Photonics Journal, 2012
We present a promising application of epsilon-near-zero (ENZ) materials in optical modulators. When a thin ENZ film is sandwiched in a single-mode waveguide, an ENZ-slot waveguide is formed, where the absorption can be greatly enhanced.
Zhaolin Lu, Wangshi Zhao, Kaifeng Shi
doaj   +1 more source

Erbium dopants in silicon nanophotonic waveguides

, 2020
The combination of established nanofabrication with attractive material properties makes silicon a promising material for quantum technologies, where implanted dopants serve as qubits with high density and excellent coherence even at elevated temperatures.
Weiss, Lorenz, Gritsch, Andreas, Merkel, Benjamin, Reiserer, Andreas   +3 more
openaire   +2 more sources