Results 41 to 50 of about 3,999 (212)

Intrinsically Design‐Rule‐Compliant Nanophotonic Inverse Design via Learned Generative Manifolds

Laser &Photonics Reviews, EarlyView.
A generative reparameterization framework for nanophotonic inverse design is introduced, restricting optimization to a learned manifold of design‐rule‐compliant geometries. Unlike conventional penalty‐based approaches, fabrication constraints are encoded intrinsically within the design representation.
Bahrem Serhat Danis, Demet Baldan Desdemir, Enes Akcakoca, Zeynep Ipek Yanmaz, Gulzade Polat, Ahmet Onur Dasdemir, Aytug Aydogan, Abdullah Magden, Emir Salih Magden   +8 more
wiley   +1 more source

Parallel Vector Processing in Optical Computing With Jacobi Time‐Wave Packets

Laser &Photonics Reviews, EarlyView.
Functionality of a single neuron and state of the art photonic acceleration with a Mach‐Zehnder‐interferometer (MZI) mesh (i), a crossbar array (ii) and a micro ring resonator (MRR) array (iii). In the proposed Jacobi time‐wave packet approach (iv) a single modulator (here a ring modulator) is performing the whole scalar vector product in a single ...
Janosch Meier, Khaleda Mallick, Abhinand Venugopalan, Milind Bagul, Gouri Krishnan, Thomas Schneider   +5 more
wiley   +1 more source

Ultra-optimized demultiplexer unit design in quantum-dot cellular automata nanotechnology

e-Prime: Advances in Electrical Engineering, Electronics and Energy
Integrated circuit designers face challenges in using complementary metal oxide semiconductor (CMOS) technology as it has a large leakage current and scalability challenge in ultra-nanoscale regime. Quantum-dot Cellular Automata (QCA) is a nanotechnology
Vijay Kumar Sharma, Neeraj Kaushik
doaj   +1 more source

Photonic Crystal Based 2/3/6- Way Optical Splitter and Demultiplexer

Frontiers in Physics, 2019
We present 2-, 3-, and 6-way optical demultiplexer and optical filters based on coupled waveguide and photonic crystal cavities. Demultiplexers with 3 nm channel separation and optical splitters with different transmission efficiencies are presented. The
Richa Goyal, Richa Goyal, Banoj Kumar Nayak, Ashwin Tulapurkar, Venu Gopal Achanta   +4 more
doaj   +1 more source

Multifunctionality in Silicon Photonics Through Temperature‐Driven Inverse Design

Laser &Photonics Reviews, EarlyView.
Temperature‐conditioned inverse design embeds thermo‐optic reconfigurability directly into compact silicon photonic devices. By co‐optimizing a single geometry at 300 K (T1) and 520 K (T2), the same structure supports distinct optical functions, enabling experimentally verified switching and mode conversion without resonant architectures or additional ...
Berkay Neseli, Seokjin Hong, Yeonjun Kim, Seungsoo Lee, Seung‐Yoon Choi, Junyeop Lee, Hyo‐Hoon Park, Mirbek Turduev, Hamza Kurt   +8 more
wiley   +1 more source

3D-Printed Demultiplexer Circuits Using Suspended-in-Air Grating Couplers for Terahertz Communications

IEEE Access
Integrated photonic circuits are in great demand for the upcoming THz communications. This work explores 3D printing to realize high-quality, high-refractive-index-contrast integrated components and devices for demultiplexing terahertz channels within ...
Babak Yahyapour, Frederic Marcotte, Roya Gachiloo, Maksim Skorobogatiy   +3 more
doaj   +1 more source

Fast and efficient demultiplexing of single photons from a quantum dot with resonantly enhanced electro-optic modulators

APL Photonics, 2022
We report on a multi-photon source based on active demultiplexing of single photons emitted from a resonantly excited GaAs quantum dot. Active temporal-to-spatial mode demultiplexing is implemented via resonantly enhanced free-space electro-optic ...
Julian Münzberg, Franz Draxl, Saimon Filipe Covre da Silva, Yusuf Karli, Santanu Manna, Armando Rastelli, Gregor Weihs, Robert Keil   +7 more
doaj   +1 more source

Dual‐Metasurface‐Integrated Fiber Array for Bidirectional Cylindrical‐Vector‐Beam Multiplexed Communication Using Off‐Axis Spatial Manipulation

Laser &Photonics Reviews, EarlyView.
A dual‐layer metasurface is integrated on a fiber‐array facet to realize compact, plug‐and‐play free‐space optical links with cylindrical vector beam (CVB) space‐division multiplexing. An optimized off‐axis collimation layer steers multiple channels, while a Dammann vortex layer performs polarization–topology conversion for bidirectional CVB (de ...
Xipeng Lu, Jinke Li, Jin Tae Kim, Shaoyan Li, Hongliang Li, Duk‐Yong Choi, Sang‐Shin Lee   +6 more
wiley   +1 more source

Phononic Crystals: Physical Principles and Novel Structures [PDF]

AUT Journal of Mechanical Engineering
Phononic crystals (PnCs) are periodic materials that can control and manipulate the propagation of acoustic (or elastic) waves. The importance of paying attention to this area can be seen in applications such as wireless telecommunications, communication
Amir Rostami, Hassan Kaatuzian, Babak Rostami-Dogolsara   +2 more
doaj   +1 more source

From Planar to 3D Nanophotonic Lenses: Advancing Design, Fabrication, and Applications

Laser &Photonics Reviews, EarlyView.
Three‐dimensional nanophotonic lenses are enabled by an integrated workflow that links design parameterization, full‐wave electromagnetic simulation, computational optimization, and freeform fabrication. This Review summarizes how these tools expand optical design freedom beyond a single patterned plane by enriching the local meta‐atom response and ...
Wei Zhu, Lyudmila V. Goncharova, Eric Johlin   +2 more
wiley   +1 more source