Friday 15 July 2022. Quantum communications: A quantum internet based entirely on silicon is already possible.

Researchers at Simon Fraser University in Canada have made a crucial breakthrough in the development of quantum technology. They have found the missing photonic link to develop an all-silicon quantum internet.

Their research, published in the journal Nature, describes their observations of more than 150,000 silicon photon-spin T-center qubits, a major milestone that opens up immediate opportunities for building massively scalable quantum computers and the quantum Internet that will connect them.

Quantum computing has enormous potential to provide computing power far beyond that of today’s supercomputers, which could enable advances in many other fields, such as chemistry, materials science, medicine and cybersecurity.

For this to become a reality, it is necessary to produce both stable, long-lived qubits that provide processing power, and the communications technology that allows these qubits to connect with each other at scale.

Previous research has indicated that silicon can produce some of the most stable and long-lived qubits in the industry. Now, research published by Daniel Higginbottom, Alex Kurkjian and co-authors provides proof-of-principle that T-centers, a luminescent defect specific to silicon, can provide a “photonic link” between qubits.

This work comes from the SFU Department of Physics’ Silicon Quantum Technology Laboratory, co-directed by Stephanie Simmons, Canada Research Chair in Silicon Quantum Technologies, and Michael Thewalt, professor emeritus.

“This work is the first measurement of individual T-centers in isolation and, in fact, the first measurement of any individual spin in silicon to be made with optical measurements alone,” Stephanie Simmons highlights in a statement.

“An emitter like the T-center, which combines high-performance spin qubits and optical photon generation, is ideal for making scalable, distributed quantum computers, because they can handle processing and communications together, rather than having to interconnect two different quantum technologies, one for processing and one for communications,” she adds.

In addition, T-hubs have the advantage of emitting light at the same wavelength used by today’s metro fiber communications equipment and telecommunications networks.

With T-hubs, you can build quantum processors that communicate intrinsically with other processors,” he says. When your silicon qubit can communicate by emitting photons (light) in the same band that is used in data centers and fiber networks, you get these same advantages for connecting the millions of qubits needed for quantum computing.”

The development of quantum technology with silicon offers the possibility of rapidly scaling up quantum computing. The global semiconductor industry is already capable of manufacturing silicon computer chips at scale at low cost and with an astonishing degree of precision. This technology forms the backbone of modern computing and networking, from smartphones to the world’s most powerful supercomputers.

“If a way can be found to create quantum computing processors in silicon, all the years of development, knowledge and infrastructure used to make conventional computers can be leveraged, rather than creating a whole new industry for quantum manufacturing,” he says. This represents an almost insurmountable competitive advantage in the international race for the quantum computer.”

https://www.dw.com/es/investigadores-hallan-el-eslab%C3%B3n-fot%C3%B3nico-que-les-faltaba-para-desarrollar-un-internet-cu%C3%A1ntico-totalmente-de-silicio/a-62463170

https://noticiasdelaciencia.com/art/44635/ya-es-posible-una-internet-cuantica-basada-enteramente-en-el-silicio

https://www.poresto.net/internacional/2022/7/14/investigadores-de-canada-hacen-posible-la-internet-cuantica-totalmente-de-silicio-344108.html

https://amp.europapress.es/ciencia/laboratorio/noticia-ya-posible-internet-cuantica-totalmente-silicio-20220713172843.html

Summer School on III-Sb applications: Solar Cells to be held at ETSI Telecomunicación UPM on July 11th-15th 2022. José M. Ulloa (Event Organizer, UPM), Benito Alén (Quantimony Network Coordinator, CSIC).

Renowned experts in the field of photovoltaics will present tutorials and talks introducing the fundamentals of the field, its challenges and the most recent advances in key areas covering Silicon, III-V and multijunction solar cells and emerging technologies.
The school is organized and funded by the European H2020 Project QUANTIMONY: Quantum Semiconductor Technologies Exploiting Antimony (MSCA-ITN-2020-956548), an innovative training network fostering industrial and academic research across Europe in quantum semiconductor materials for Telecomm, Datacomm and Photovoltaics. QUANTIMONY Summer School on photovoltaics aims to provide training and insight into the fundamentals of photovoltaics and the role of antimonides to all interested researchers from your institution.

We hope to see you there!
José M. Ulloa (Event organizer, UPM)
Benito Alén (Quantimony Network Coordinator, CSIC)

Meeting of the Institutional Committee ICTS Micronanofabrication Clean Room Network (Micronanofabs), organized by ISOM at ETSIT-UPM, June 15th, 2022.

In accordance with the Collaboration Agreement signed between the entities participating in the ICTS Distributed MICRONANOFABS, the Coordinator of the same, D. Javier Martínez Rodrigo, as Secretary of the Institutional Committee, summoned the legal representatives of the Agencia Estatal Consejo Superior de Investigaciones Científicas, of the Universidad Politécnica de Madrid and of the Universitat Politècnica de València, and the representatives of the Ministerio de Ciencia, Innovación y Universidades to the meeting of the Institutional Committee of the ICTS Distributed MICRONANOFABS, which took place in the Professors Room of the C building of the E. T. S.I. Telecomunicaciones, Avda. T.S.I.Telecomunicaciones, Avda. Complutense 30, Madrid, on Wednesday, June 15, 2022 at 11:30 am.

Nanotechnology for society: “Energy with graphene: green, efficient and cheap”.

18.05.2022, Ateneo de Madrid.

Environment Section. Speakers: Yu Kyoung Ryu, postdoctoral researcher Universidad Politécnica de Madrid; Javier Martínez Rodrigo, Researcher at UPM and the Institute of Optoelectronic Systems and Microtechnologies (ISOM), Andrés Velasco Santiago, PhD thesis student Universidad Politécnica de Madrid. Presenter and moderator: Eduardo Sánchez Alcaraz and Ernesto Ríos. New Estafeta Hall. 19. 30h. 

D. Alejandro Gallego Carro, has received the Best Presentation Award in the area of Vacuum-related Science and Technologies, at the WOCSDICE EXMANTEC 2022 congress.

3-6 May 2022 | Ponta Delgada (São Miguel island – Azores), PORTUGAL, congress WOCSDICE EXMANTEC 2022,  D. Alejandro Gallego Carro, PhD student  has received the Best Presentation Award in the area of Vacuum-related Science and Technologies, Award sponsored by Sociedade Portuguesa de Vácuo (Soporvac). certificate and prize money delivered by Prof. Dr. Teresa Monteiro, Member of the Board of Sociedade Portuguesa de Vácuo.

ISOM participation in UPMDay’22, the largest concentration of talent at UPM.

May 17 and 18, 2022.  The Polytechnic University of Madrid held the UPMDay’22 event, which concentrated in two days the investiture of 475 PhDs and the awarding of diplomas to more than 15 thousand graduates of the last two promotions.

There was also an R&D space in which the 16 Innovation Centers and five Research Institutes of the University, including ISOM, held meetings with the attending companies, graduates and students who wanted to learn about the lines of research currently being developed at the Polytechnic University of Madrid.

 

“Fabrication of FePt nanowires through pulsed electrodeposition into nanoporous alumina templates”. Applied Nanoscience (2022).

Authors: R. Magalhães, M.P. Proenca, J.P. Araújo, et al.
Citation: Applied Nanoscience (2022). Year: 2022

Link: https://doi.org/10.1007/s13204-022-02454-1

Abstract

One-dimensional magnetic nanostructures have been emerging as promising nanomaterials for biomedical applications. Among those types of nanoarchitectures, FePt nanowires are particularly interesting; since they are highly biocompatible and chemically inert, their magnetic properties can be tuned by controlling not only the atomic ratio of the two elements in the alloy structure but also the nanowire’s dimensions, and they have a high magnetic anisotropy. In this work, we report the fabrication of such nanostructures through pulsed electrodeposition into nanoporous aluminium oxide templates. Using this approach, we were able to control the composition of the produced nanoarchitectures by adjusting the thickness of the barrier layer, which is located at the bottom of the template, and the current density applied during the electrodeposition process. The obtained nanostructures exhibited a heterogeneous length distribution when Pt was present. Moreover, their magnetic characterization revealed an increase of the magnetic hysteresis, coercivity, remanence, and saturation field as the Fe atomic percent got higher. Furthermore, hysteresis loops of FePt nanowire arrays were simulated and compared with the experimental measurements. Such comparison suggested that the nanostructures with Pt in their composition might have different stoichiometries along their length.

Funding

This work was supported by Portuguese Fundação para a Ciência e Tecnologia (FCT) and Programa Operacional Regional Norte (Fundo Social Europeu) under the project SFRH/BD/148563/2019 and IF/01159/2015. This work was also financially supported by the FCT and Programa Operacional Competitividade e Internacionalização 2020 (Fundo Europeu de Desenvolvimento Regional) under the projects POCI-01-0141-FEDER-032527, PTDC/FIS-MAC/31302/2017, PTDC/CTM-CTM/28676/2017, PTDC/FIS-OTI/32257/2017, and Strategic Funding contract UIDB/04968/2020, from the Spanish Ministerio de Ciencia e Innovación under the project PID2020-117024GB-C42, and from European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie Grant Agreement No. 734801. This work has also made use of the Spanish ICTS Network MICRONANOFABS.

ISOM renews its recognition as a Singular Scientific and Technological Infrastructure. Interview with Mr. Fernando Calle Gómez, Director of ISOM.

Dr. Fernando Calle, Director of ISOM

“It allows us to continue improving in such a competitive environment as research, which is so necessary if technological sovereignty is to be achieved.”

The Spanish Network of Micro and Nano Fabrication Clean Rooms (Micronanofabs), to which the Institute of Optoelectronic Systems and Microtechnology (ISOM) of the Polytechnic University of Madrid (UPM) belongs, has renewed for four more years the status of Singular Scientific and Technical Infrastructure (ICTS) granted by the Ministry of Science and Innovation. This recognition is reserved for facilities, resources or services that are essential for the development of cutting-edge research of the highest quality, as well as for the transmission, exchange and preservation of knowledge, the transfer of technology and the promotion of innovation. They are publicly owned infrastructures that are unique or exceptional in their kind, with a very high investment, maintenance and operating cost, and whose strategic nature justifies their being open to all researchers.

For the director of ISOM, Fernando Calle, being part of the Spanish ICTS map for the period 2021-2024, apart from being a source of satisfaction, is part of the “ambitious objective of continuing to improve in this highly competitive research environment, which is so necessary if technological sovereignty is to be achieved”. The advanced equipment and instrumentation of this facility, which is based at the Escuela Técnica Superior de Ingenieros de Telecomunicación (ETSIT), allow the manufacture of electronic materials other than silicon, their technological processing and the production of integrated electronic, optical, optoelectronic and magnetic devices and structures. Furthermore, thanks to its electron beam lithography system, micrometer and nanometer-sized structures can be produced.

Full interview at: Web UPM and Web ETSIT. E-Politécnica Investigación e innovación, issue 606, from May 3 to May 9, 2022.

Micronanofabs, four more years among the Singular Scientific and Technical Infrastructures (ICTS) in Spain.

The Spanish Network of Micro and Nanofabrication Clean Rooms (Micronanofabs), to which the Polytechnic University of Valencia (UPV), the Spanish National Research Council (CSIC) and the Polytechnic University of Madrid (UPM) belong, has renewed for four more years its status as ICTS (Singular Scientific and Technical Infrastructures).

The Network is made up of the Micro and Nanofabrication Infrastructure of the University Institute of Nanophotonic Technology of the UPV, the Integrated Micro and Nanofabrication Clean Room of the National Microelectronics Center of the Spanish National Research Council (CSIC) and the Technology Center of the Institute of Optoelectronic Systems and Microtechnology (ISOM) of the Polytechnic University of Madrid (CT-ISOM).

For Javier Martí, director of the University Institute of Nanophotonic Technology of the UPV, and coordinator of the ICTS Micronanofabs, this renewal endorses the work developed by the network since its launch in 2015. “It will allow us to continue offering, jointly, high added value services for both research centers and companies that incorporate micronanotechnologies in their products”, highlighted Martí, during a conference on Micronanofabs held today at the Polytechnic City of Innovation, science park of the Universitat Politècnica de València, with funding from the Valencian Agency for Innovation (AVI).

Micro-nanofabrication equipment in silicon and a 500 m2 clean room, among the resources of the UPV.

The facilities of the University Institute of Nanophotonic Technology of the UPV have a complete line of micro-nanofabrication equipment on silicon wafers (6 and 8 inches in size) that allow the processing of photonic and electronic devices and structures based on this material and its alloys. It also has a 500 m2 class 10-100-10000 clean room, photonic chip assembly and encapsulation laboratories and facilities for physical, optical and electrical characterization.

Integrated in the National ICTS Map

The Micronanofabs Network is integrated in the National Map of Singular Scientific and Technical Infrastructures (ICTS), renewed last November. The new Map is made up of 29 ICTS, which bring together a total of 62 infrastructures. It is a tool for the planning and development of these infrastructures in coordination with the Autonomous Communities.

The ICTS are available to the national and international scientific, technological and industrial community. These cutting-edge scientific-technical infrastructures are essential for the development of competitive and quality scientific and technological research, they are unique in their kind, with a very high investment and/or maintenance and operation cost, and their strategic nature justifies their competitive access for the whole R&D&I system.

Key figures

More than 550 micro-nano-manufacturing services per year.

More than 46% of total services are offered to companies.

One third of technological services are provided to international customers (mainly European).

Investment of 45 million euros in equipment already installed (+20 in the next three years)

58 technologists (process engineers and maintenance technicians)

Published: https://innovacion.upv.es/es/micronanofabs-cuatro-anos-mas-entre-las-infraestructuras-cientificas-y-tecnicas-singulares-icts-de-espana/

https://www.ciencia.gob.es/Organismos-y-Centros/Infraestructuras-Cientificas-y-Tecnicas-Singulares-ICTS/Materiales/Red-de-Salas-Blancas-de-Micro-y-Nanofabricacion-MICRONANOFABS.html

Women in STEM: An interview with Dr. Yu Kyoung Ryu, Postdoctoral Researcher in the ISOM-Graphene Group. NuNano Interviews, 24 March 2022

Atomic force microscopy’s (AFM) applications are wide and varied, with new modes and protocols being developed every year. But what may come as a surprise to some, is that AFM probes can be used not just for imaging surfaces, but also modifying them through techniques such as Scanning Probe Lithography (SPL).  NuNano, 25 March 2022.

James Vicary. Interviews.

https://www.nunano.com/blog/yu-kyoung-ryu

The vision that atomic force microscopy could be used for future data storage and semiconductor fabrication applications was instrumental (no pun intended!) to my early interest in the world of AFM. Indeed, my PhD work focused on using high-speed AFM for nanofabrication, so this is a subject still close to my heart.

I don’t think AFM has yet realised that early vision, but without a doubt the field of scanning probe lithography has offered tantalising glimpses into what might be possible. 

This includes the work of Dr Yu Kyoung Ryu, who we’ve recently had the privilege to talk with about her research and career. It brings back some memories!.  

Career Background

                Dr Yu Kyoung Ryu     

Ryu’s route into scanning probe lithography started during her PhD with Prof. Ricardo Garcia at Instituto de Ciencia de Materiales de Madrid (ICMM) (Consejo Superior de Investigaciones Científicas).

‘I loved microscopies (SEM, TEM, AFM…) and thought I would characterise fascinating material properties with an AFM tip. The big surprise was that my supervisor gave me the topic of using an AFM tip to fabricate optoelectronic devices at the nanoscale and high-resolution nanostructures of different materials, in my case silicon and 2D materials.

This technique is called scanning probe lithography (SPL) and comprises of a family of different modalities: oxidation, thermal, mechanical, and dip pen nanolithography to name a few. I fell in love with the technique, and it is a passion I keep up to date’.

During her PhD, Ryu participated in a European project called ‘Single nanometer manufacturing for beyond CMOS devices’. This gave Ryu the chance to meet her first postdoctoral supervisor, Dr Armin Knoll, from IBM Research Zurich, who was also involved in the project.

‘His work is focused on thermal scanning probe lithography. This modality of SPL (and atomic force microscopy itself!) was developed at IBM Zurich. It was awesome to have the opportunity to do my postdoctorate there, I have very good memories’.

At present, Ryu is a postdoctoral researcher at the Instituto de Sistemas Optoelectrónicos y Microtecnología (ISOM) in the group ‘ISOM Graphene’ under the supervision of Prof. Javier Martinez Rodrigo.

Currently and in following years, she will focus on the fabrication of energy harvesting and storage devices based on graphene and other 2D materials applying different lithographies, among them scanning probe lithography and laser writing.