Results 91 to 100 of about 549,040 (242)

Nanoholes Grating Couplers for Coupling Between Silicon-on-Insulator Waveguides and Optical Fibers

IEEE Photonics Journal, 2009
Simulation and experimental results of grating couplers composed of arrays of nanoholes are presented. The use of an array of holes instead of a conventional waveguide grating provides an additional degree of freedom in the design of the coupler, thus ...
Xia Chen, Hon Ki Tsang
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

Thinner silicon-based tandem solar cell with high efficiency made by hot wire CVD [PDF]

, 2011
We developed thin film silicon tandem cells with hot-wire deposited amorphous (protocrystalline) and nanocrystalline i-layers, with a total thickness of only 1.43 µm. This is considerably thinner than the thickness of 2.5–3.0 µm normally needed, which is
Nanophotonics, Xin, J., Sub Physics of devices begr 1/1/17, Schropp, R.E.I., van der Werf, C.H.M., Afd Nanophotonics   +5 more
core  

Through-Si-via (TSV) Keep-Out-Zone (KOZ) in SOI Photonics Interposer: A Study of the Impact of TSV-Induced Stress on Si Ring Resonators

IEEE Photonics Journal, 2013
Si photonic devices are sensitive to the change in refractive index on the Si-on-insulator (SOI) platform. One of the critical limitations in the compact 3D photonic integration circuit is the through-Si-via (TSV)-induced stress, which affects the ...
Yan Yang, Mingbin Yu, Rusli, Qing Fang, Junfeng Song, Liang Ding, Guo-Qiang Lo   +6 more
doaj   +1 more source

Construction optimization and functional applications of fluorescent nanodiamonds

Responsive Materials, EarlyView.
This review summarizes synthesis, surface modification and optical properties of fluorescent nanodiamonds. Their advances in quantum sensing, single‐photon emission and biomedicine are discussed, and existing challenges and future directions are presented.
Yunpeng Yang, Sen Zhang, Chao Chen, Wensi Yang, Zuanquan Chen, Rui Fan, Linlin Liu, Benjian Liu, Kang Liu, Zhibo Zhang, Bing Dai, Jiaqi Zhu   +11 more
wiley   +1 more source

Optical Retroreflective Marker Fabricated on Silicon-On-Insulator

IEEE Photonics Journal, 2011
Optical retroreflective markers provide a strong return signal when illuminated by a source, resulting in an easy way to localize and identify an object.
K. Van Acoleyen, D. C. O'Brien, F. Payne, W. Bogaerts, R. Baets   +4 more
doaj   +1 more source

Multi‐Scale Engineering of Photonic Meta‐Structures With Emergent Optical Resonances via Colloidal Crystal Engineering With DNA and Microwell Templates

Small, EarlyView.
This work presents a bottom‐up strategy for forming meta‐structures built from DNA‐assembled nanoparticle superlattices, establishing a versatile platform for multiscale photonic materials design. Confinement stabilizes non‐equilibrium crystal habits and enables geometry and mode control independent of lattice symmetry.
Alexa M. Wong, Ramin Yazdaanpanah, Mia J. P. Pascall, Jeongmin Cho, Yiming Yang, Allen X. Guo, Janice Kang, Koray Aydin, Chad A. Mirkin   +8 more
wiley   +1 more source

Mid-Infrared Sensor Based on a Suspended Microracetrack Resonator With Lateral Subwavelength-Grating Metamaterial Cladding

IEEE Photonics Journal, 2018
A mid-infrared (MIR) biochemical sensor based on a one-time Si etching suspended microracetrack resonator with lateral subwavelength-grating metamaterial cladding is theoretically and experimentally demonstrated on a commercial 340-nm-thick-top-silicon ...
Zecen Zhang, Geok Ing Ng, Ting Hu, Haodong Qiu, Xin Guo, Wanjun Wang, Mohamed S. Rouifed, Chongyang Liu, Jiaxu Sia, Jin Zhou, Callum G. Littlejohns, Graham T. Reed, Hong Wang   +12 more
doaj   +1 more source

Engineering Photothermal Nanoplatforms for Multimodal Theranostics and Biosensing

Rare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Photothermal platforms bridge materials science and biomedicine, emerging as a transformative frontier in biomedical applications. They offer spatiotemporally precise, noninvasive modalities with cell‐type‐independent efficacy for treating a range of diseases.
Xiao Han, Peng Jin, Haiqing Wang, Hao Xue   +3 more
wiley   +1 more source

Burst-mode operation of a 655GHz mode locked laser based on an 11-th order microring resonator

, 2015
Integrated Photonics Research, Silicon and Nanophotonics, IPRSN 2015, 27 June-1 July 2015We demonstrate a new regime for ultrafast mode-locked lasers termed "burst-mode".
Sai T. Chu, Ho, Victor, Jin, L, Ferrera, M, Caspani, Lucia, Roberto Morandotti, Marco Peccianti, Peccianti, M, Pasquazi, Alessia, Tsang, K.S., K.S. Tsang, Caspani, L, Chu, ST, Jin, Li, Moss, David J., Cooper, Andrew, Marcello Ferrera, Peccianti, Marco, Brent E. Little, Alessia Pasquazi, Ferrera, Marcello, Little, BE, Victor Ho, Moss, DJ, David J. Moss, Li Jin, Morandotti, R, Little, Brent E., Andrew Cooper, Morandotti, Roberto, Ho, V, Cooper, A, Pasquazi, A, Tsang, K. S., Chu, Sai T., Lucia Caspani, Tsang, KS   +36 more
core   +1 more source