Large area transferred silicon nanomembrane photonic devices on unconventional substrates

2013 ◽  
Author(s):  
Xiaochuan Xu ◽  
Harish Subbaraman ◽  
Amir Hosseini ◽  
David Kwong ◽  
Ray T. Chen
Keyword(s):  
Photonic Devices ◽  
Large Area ◽  
Silicon Nanomembrane

Large Area Silicon Nanomembrane Photonic Devices on Unconventional Substrates

2013 ◽  
Vol 25 (16) ◽  
pp. 1601-1604 ◽  
Author(s):  
Xiaochuan Xu ◽  
Harish Subbaraman ◽  
David Kwong ◽  
Amir Hosseini ◽  
Yang Zhang ◽  
...  
Keyword(s):  
Photonic Devices ◽  
Large Area ◽  
Silicon Nanomembrane

Stamp printing of silicon-nanomembrane-based photonic devices onto flexible substrates with a suspended configuration

2012 ◽  
Vol 37 (6) ◽  
pp. 1020 ◽  
Author(s):  
Xiaochuan Xu ◽  
Harish Subbaraman ◽  
Amir Hosseini ◽  
Che-Yun Lin ◽  
David Kwong ◽  
...  
Keyword(s):  
Photonic Devices ◽  
Flexible Substrates ◽  
Silicon Nanomembrane

Transfer and characterization of silicon nanomembrane-based photonic devices on flexible polyimide substrate

2011 ◽  
Author(s):  
Xiaochuan Xu ◽  
Harish Subbaraman ◽  
Daniel Pham ◽  
Amir Hosseini ◽  
Xiaohui Lin ◽  
...  
Keyword(s):  
Photonic Devices ◽  
Polyimide Substrate ◽  
Silicon Nanomembrane

scholarly journals Transforming silicon into a high performing in tegrated nonlinear photonics platform by integrati on with 2D graphene oxide films

2020 ◽  
Author(s):  
David Moss ◽  
Baohua Jiao ◽  
Jiayang Wu ◽  
Yuning Zhang ◽  
Yunyi Yang ◽  
...  
Keyword(s):  
Kerr Nonlinearity ◽  
Photonic Devices ◽  
Silicon On Insulator ◽  
Layer By Layer ◽  
Large Area ◽  
High Performing ◽  
Precise Control ◽  
Silicon Photonic ◽  
Highly Nonlinear ◽  
Coating Method

Layered two-dimensional (2D) GO films are integrated with silicon-on-insulator (SOI) nanowire waveguides to experimentally demonstrate an enhanced Kerr nonlinearity, observed through self-phase modulation (SPM). The GO films are integrated with SOI nanowires using a large-area, transfer-free, layer-by-layer coating method that yields precise control of the film thickness. The film placement and coating length are controlled by opening windows in the silica cladding of the SOI nanowires. Owing to the strong mode overlap between the SOI nanowires and the highly nonlinear GO films, the Kerr nonlinearity of the hybrid waveguides is significantly enhanced. Detailed SPM measurements using picosecond optical pulses show significant spectral broadening enhancement for SOI nanowires coated with 2.2-mm-long films of 1−3 layers of GO, and 0.4-mm-long films with 5−20 layers of GO. By fitting the experimental results with theory, the dependence of GO’s <i>n</i><sub>2</sub> on layer number and pulse energy is obtained, showing interesting physical insights and trends of the layered GO films from 2D monolayers to quasi bulk-like behavior. Finally, we show that by coating SOI nanowires with GO films the effective nonlinear parameter of SOI nanowires is increased 16 fold, with the effective nonlinear figure of merit (FOM) increasing by about 20 times to FOM > 5. These results reveal the strong potential of using layered GO films to improve the Kerr nonlinear optical performance of silicon photonic devices.

scholarly journals Elevating silicon into a high performance nonlinear optical platform through the integration of 2D graphene oxide thin films

2021 ◽  
Author(s):  
David Moss
Keyword(s):  
High Performance ◽  
Nonlinear Optical ◽  
Kerr Nonlinearity ◽  
Photonic Devices ◽  
Silicon On Insulator ◽  
Layer By Layer ◽  
Large Area ◽  
Precise Control ◽  
Highly Nonlinear ◽  
Coating Method

Abstract Layered two-dimensional (2D) GO films are integrated with silicon-on-insulator (SOI) nanowire waveguides to experimentally demonstrate an enhanced Kerr nonlinearity, observed through self-phase modulation (SPM). The GO films are integrated with SOI nanowires using a large-area, transfer-free, layer-by-layer coating method that yields precise control of the film thickness. The film placement and coating length are controlled by opening windows in the silica cladding of the SOI nanowires. Owing to the strong mode overlap between the SOI nanowires and the highly nonlinear GO films, the Kerr nonlinearity of the hybrid waveguides is significantly enhanced. Detailed SPM measurements using picosecond optical pulses show significant spectral broadening enhancement for SOI nanowires coated with 2.2-mm-long films of 1 − 3 layers of GO, and 0.4-mm-long films with 5 − 20 layers of GO. By fitting the experimental results with theory, the dependence of GO’s n2 on layer number and pulse energy is obtained, showing interesting physical insights and trends of the layered GO films from 2D monolayers to quasi bulk-like behavior. Finally, we show that by coating SOI nanowires with GO films the effective nonlinear parameter of SOI nanowires is increased 16 fold, with the effective nonlinear figure of merit (FOM) increasing by about 20 times to FOM > 5. These results reveal the strong potential of using layered GO films to improve the Kerr nonlinear optical performance of silicon photonic devices.

Stamp Printing of Silicon Nanomembrane Based Flexible Photonic Devices

2012 ◽  
Author(s):  
Xiaochuan Xu ◽  
Harish Subbaraman ◽  
Amir Hosseini ◽  
David Kwong ◽  
Che-Yun Lin ◽  
...  
Keyword(s):  
Photonic Devices ◽  
Silicon Nanomembrane

scholarly journals Transforming silicon into a high performing in tegrated nonlinear photonics platform by integrati on with 2D graphene oxide films

2020 ◽  
Author(s):  
David Moss ◽  
Baohua Jiao ◽  
Jiayang Wu ◽  
Yuning Zhang ◽  
Yunyi Yang ◽  
...  
Keyword(s):  
Kerr Nonlinearity ◽  
Photonic Devices ◽  
Silicon On Insulator ◽  
Layer By Layer ◽  
Large Area ◽  
High Performing ◽  
Precise Control ◽  
Silicon Photonic ◽  
Highly Nonlinear ◽  
Coating Method

Layered two-dimensional (2D) GO films are integrated with silicon-on-insulator (SOI) nanowire waveguides to experimentally demonstrate an enhanced Kerr nonlinearity, observed through self-phase modulation (SPM). The GO films are integrated with SOI nanowires using a large-area, transfer-free, layer-by-layer coating method that yields precise control of the film thickness. The film placement and coating length are controlled by opening windows in the silica cladding of the SOI nanowires. Owing to the strong mode overlap between the SOI nanowires and the highly nonlinear GO films, the Kerr nonlinearity of the hybrid waveguides is significantly enhanced. Detailed SPM measurements using picosecond optical pulses show significant spectral broadening enhancement for SOI nanowires coated with 2.2-mm-long films of 1−3 layers of GO, and 0.4-mm-long films with 5−20 layers of GO. By fitting the experimental results with theory, the dependence of GO’s <i>n</i><sub>2</sub> on layer number and pulse energy is obtained, showing interesting physical insights and trends of the layered GO films from 2D monolayers to quasi bulk-like behavior. Finally, we show that by coating SOI nanowires with GO films the effective nonlinear parameter of SOI nanowires is increased 16 fold, with the effective nonlinear figure of merit (FOM) increasing by about 20 times to FOM > 5. These results reveal the strong potential of using layered GO films to improve the Kerr nonlinear optical performance of silicon photonic devices.

scholarly journals Self-Assembled Ag Nanocomposites into Ultra-Sensitive and Reproducible Large-Area SERS-Active Opaque Substrates

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2055
Author(s):  
Abeer Fahes ◽  
Aotmane En En Naciri ◽  
Mohammad Navvabpour ◽  
Safi Jradi ◽  
Suzanna Akil
Keyword(s):  
Silicon Substrate ◽  
Large Scale ◽  
Low Cost ◽  
Photonic Devices ◽  
Optical Analysis ◽  
Large Area ◽  
Pmma Layer ◽  
High Throughput Technology ◽  
Doped Silicon ◽  
Self Assembled

This work describes a novel, one-shot strategy to fabricate ultrasensitive SERS sensors based on silver/poly(methyl methacrylate) (PMMA) nanocomposites. Upon spin coating of a dispersion of PMMA and silver precursor on N-doped silicon substrate, closely separated silver nanoparticles were self-assembled into uniform nanospheres. As a result, a thin hydrophobic PMMA layer embedded with Ag nanoparticles (AgNPs) was obtained on the whole silicon substrate. Consequently, a large-scale, reproducible SERS platform was produced through a rapid, simple, low-cost, and high-throughput technology. In addition, reproducible SERS features and high SERS enhancement factors were determined (SEF ~1015). This finding matches the highest SEF reported in literature to date (1014) for silver aggregates. The potential and novelty of this synthesis is that no reducing agent or copolymer was used, nor was any preliminary functionalization of the surface carried out. In addition, the AgNPs were fabricated directly on the substrate’s surface; consequently, there was no need for polymer etching. Then, the synthetic method was successfully applied to prepare opaque SERS platforms. Opaque surfaces are needed in photonic devices because of the absence of secondary back reflection, which makes optical analysis and applications easier.

Silicon Nanomembrane Based Photonic Devices on Foreign Substrates

CLEO: 2013 ◽  
2013 ◽  
Author(s):  
Xiaochuan Xu ◽  
Harish Subbaraman ◽  
Amir Hosseini ◽  
Ray T. Chen
Keyword(s):  
Photonic Devices ◽  
Silicon Nanomembrane
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