Navigation Links
An optical switch based on a single nano-diamond
Date:10/19/2013

A recent study led by researchers of the ICFO (Institute of Photonic Sciences) demonstrates that a single nano-diamond can be operated as an ultrafast single-emitter optical switch operating at room temperature. The scientific results of this study have been published in Nature Physics.

Electronic transistors have become a key component to modern electronics, drastically improving the speed of information processing of current technologies. An electronic transistor is a semiconductor device used to amplify and switch electronic signals. The much sought after optical transistor (the photonic counterpart of the electronic transistor) is poised to become a central ingredient in the development of optical signal processing. The motivation for using photons rather than electrons not only comes from their faster dynamics but also from their weaker interaction with the environment, which enable a high degree of integration and the realization of quantum operations.

Prior studies have demonstrated that single dye molecules can be operated as optical transistors with the disadvantage that they worked exclusively at extremely low temperatures. Such restrictions on the temperature made these optical transistors cumbersome for application to quantum computing.

However in this recent ICFO study, scientists have shown that a nano-size diamond at room temperature can act as an efficient optical switch controllable with light. A Nano-diamond containing a nitrogen impurity behaves like an artificial atom although much more stable at room temperature than a real atom due to its encapsulation. The ICFO scientists discovered a novel physical mechanism that enables the control of the way the nano-diamond interacts with light. While excited to its ON state by a green laser, a suitable near infrared illumination was found to act as an efficient and fast way to switch it OFF. Based on this simple concept, they were able to modulate the optical nano-diamond ON and OFF at extremely high speeds, demonstrating its robustness and viability for very fast information processing and quantum computer operations.

Quidant remarks that "what is really attractive about our discovery is that our nano-switch combines very small dimensions (compatible with integrating a large number of them in a small area) with very fast response time (meaning lots of operations in a short time) and operation at room temperature".

This new technique will contribute to the development of future integrated optical circuits as well as quantum information processing for quantum computing.


'/>"/>

Contact: Alina Hirschmann
alina.hirschmann@icfo.es
34-935-542-246
ICFO-The Institute of Photonic Sciences
Source:Eurekalert  

Related biology technology :

1. A step toward optical transistors?
2. Metasurfaces to usher in new optical technologies
3. New spectroscopy method could lead to better optical devices
4. Optical Imaging Market Worth $1.9 Billion by 2018
5. Light-emitting triangles may have applications in optical technology
6. NISTs nanotubes on a chip may simplify optical power measurements
7. Optical microscopes lend a hand to graphene research
8. Physicists skirt thermal vibration, transfer optical signal via mechanical oscillator
9. C8 MediSensors Gains CE Mark Approval for the C8 MediSensors Optical Glucose Monitor(TM) System for People with Diabetes
10. Penn researchers make first all-optical nanowire switch
11. First 3-D nanoscale optical cavities from metamaterials
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
An optical switch based on a single nano-diamond
(Date:5/21/2017)... Diego, CA (PRWEB) , ... May 20, 2017 ... ... support tool that helps avoid the lengthy trial and error process by finding ... patients. It can also strengthen the doctor-patient relationship through a personalized approach ...
(Date:5/19/2017)... ... May 19, 2017 , ... ... Program. Academic researchers with technologies ripe for commercialization, and who are affiliated ... Delaware, are encouraged to submit proposals. QED, now in its tenth round, is ...
(Date:5/18/2017)... ... May 18, 2017 , ... ... Tapas Cooking Challenge is a two-hour team-building package designed for groups of 10-30 ... Chef Jodi Abel, which include items, such as Blackened Shrimp with Edamame Salad, ...
(Date:5/18/2017)... (PRWEB) , ... May 17, 2017 , ... NDA Partners ... executive and former CEO of Eurofins Advantar Laboratories and President of Pharmaceutical Development Business ... to his position at Eurofins and Cardinal Health, he was former Chief Operating Officer ...
Breaking Biology Technology:
(Date:3/24/2017)... 24, 2017 Research and Markets has announced ... Analysis & Trends - Industry Forecast to 2025" report to ... The ... a CAGR of around 15.1% over the next decade to reach ... analyzes the market estimates and forecasts for all the given segments ...
(Date:3/22/2017)... , March 21, 2017   Neurotechnology , ... recognition technologies, today announced the release of the ... which provides improved facial recognition using up to ... a single computer. The new version uses deep ... accuracy, and it utilizes a Graphing Processing Unit ...
(Date:3/20/2017)... , March 20, 2017 At this year,s ... -based biometrics manufacturer DERMALOG. The Chancellor came to the DERMALOG stand ... is this year,s CeBIT partner country. At the largest German biometrics ... in use: fingerprint, face and iris recognition as well as DERMALOGĀ“s multi-biometrics ... ...
Breaking Biology News(10 mins):