Results 71 to 80 of about 27,311 (293)

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf, Hiba Shahulhameed, Bhabani Sankar Swain, Shengzhong (Frank) Liu, Adel Najar   +4 more
wiley   +1 more source

Two-Emitter Multimode Cavity Quantum Electrodynamics in Thin-Film Silicon Carbide Photonics

Physical Review X, 2023
Color centers are point defects in crystals that can provide an optical interface to a long-lived spin state for distributed quantum information processing applications. An outstanding challenge for color center quantum technologies is the integration of
Daniil M. Lukin, Melissa A. Guidry, Joshua Yang, Misagh Ghezellou, Sattwik Deb Mishra, Hiroshi Abe, Takeshi Ohshima, Jawad Ul-Hassan, Jelena Vučković   +8 more
doaj   +1 more source

Light Monitoring in Standard Silicon Photonics with a Monolithic Transimpedance Amplifier [PDF]

The integration of a transimpedance amplifier in standard Silicon Photonics is presented. The circuit can successfully read integrated photodiodes up to a frequency of 2 MHz and down to −40 dBm of input optical power, demonstrating successful on-chip ...
Sampietro, Marco, Morichetti, Francesco, Crico, Monica, Ferrari, Giorgio, Melloni, Andrea, Zanetto, Francesco, Martinez, Andres   +6 more
core   +1 more source

Silicon Microdisk Resonators for Nonlinear Optics and Dynamics [PDF]

, 2009
Silicon is incredibly well-studied as an electronic material. Since the out-migration of William Noyce, Gordon Moore, and the rest of the original Fairchild Semiconductor class from Shockley Semiconductor, silicon has only grown in prominence.
Johnson, Thomas James
core   +1 more source

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source

Enhanced photonics devices based on low temperature plasma-deposited dichlorosilane-based ultra-silicon-rich nitride (Si8N)

Scientific Reports, 2022
Ultra-silicon-rich nitride with refractive indices ~ 3 possesses high nonlinear refractive index—100× higher than stoichiometric silicon nitride and presents absence of two-photon absorption, making it attractive to be used in nonlinear integrated optics
Doris K. T. Ng, Hongwei Gao, Peng Xing, George F. R. Chen, Xavier X. Chia, Yanmei Cao, Kenny Y. K. Ong, Dawn T. H. Tan   +7 more
doaj   +1 more source

Silicon photonics in Pirelli

, 2008
Silicon is the dominant material in the microelectronic industry and silicon photonics is rapidly gaining importance as a technological platform for a wide range of applications in telecom, and optical interconnect.
P. Galli, A. Cabas, G. Zuliani, S. Doneda, M. Gentili, F. Giacometti, G. Grasso, S. Ghidini, S. Marinoni, R. Corsini, G. Mutinati, A. Nottola, S. Sardo, T. Tomasi, S. Lorenzotti, L. Socci, CORSINI, Raffaele, R. Morson, M. Romagnoli, D. Chacon, C. Rampinini, L. Bolla, M. Di Muri   +22 more
core   +1 more source

Dye‐Initiated Chirped Cholesteric Polymer Networks Exhibiting Broadband Dissipative Chiral Photonic Bands

Advanced Functional Materials, EarlyView.
A dye‐based photoinitiator acting as a structure‐directing element, guides the formation of a cholesteric polymer network that behaves as a chirped photonic structure with dissipative chiral coupling. Photopolymerization freezes a depth‐dependent helical pitch, broadening the Bragg resonance spectrum.
Alfredo Mazzulla, Pasquale Pagliusi, Gabriella Cipparrone   +2 more
wiley   +1 more source

Scalable temporal multiplexing of telecom photons via thin-film lithium niobate photonics

npj Quantum Information
Efficient single-photon generation remains a big challenge in quantum photonics. A promising approach to overcome this challenge is to employ active multiplexing—repeating a nondeterministic photon pair generation process across orthogonal degrees of ...
Çağın Ekici, Yonghe Yu, Jeremy C. Adcock, Alif Laila Muthali, Mujtaba Zahidy, Heyun Tan, Zhongjin Lin, Hao Li, Leif K. Oxenløwe, Xinlun Cai, Yunhong Ding   +10 more
doaj   +1 more source

Mid-infrared photonics devices in SOI

In this paper we present silicon photonics devices designed for the 3-4µm wavelength region including waveguides, MMIs, ring resonators and Mach-Zehnder interferometers. The devices are based on silicon on insulator (SOI) platform. We show that 400-500nm
Reed, G.T., Nedeljković, M., Hu, Y., Peacock, A.C., Milošević, M.M., Ben Masaud, T.M., Jaberansary, E., Chen, Xia, Strain, M., Sorel, M., Mashanovich, G.Z., Chong, H.M.H.   +11 more
core   +1 more source