Navigation Links
NRL scientists demonstrate infrared light modulation with graphene
Date:12/5/2013

WASHINGTON - Research scientists at the U.S. Naval Research Laboratory (NRL) Electronics Science and Technology Division in collaboration with researchers at University at Buffalo-The State University of New York (SUNY) demonstrate the possibility for new optical devices using graphene for communications, imaging and signal processing.

NRL research in the development of future optoelectronic devices demonstrates infrared light modulation with graphene with the impact for high-speed phase and amplitude modulators from the mid-infrared to terahertz (THz) wavelengths. The results of this work open the possibility for new optical devices using graphene for communications, imaging and signal processing.

"The realization of a tunable graphene polarizer has the potential to greatly enhance current infrared polarization modulation devices that are crucial to molecular sensing and identification, also playing a key role in infrared free space communications," said Dr. Joseph Tischler, research physicist, NRL Solid Sate Devices Branch.

Although graphene has generated considerable interest since its discovery due to its remarkable properties that led to the Nobel Prize in Physics in 2010, one of its properties has been overseen. Electrons in graphene in the presence of a magnetic field can strongly change light intensity (amplitude modulation) or rotate the light polarization (phase modulation).

Electrons in graphene rotate in quantized circular orbits under a magnetic field in the so-called Landau Levels. Light will excite these electrons from one orbit to another and the electrons, behaving as if they are moving at the speed of light, will re-emit this light with a different amplitude and/or polarization.

"Although we have controlled this effect with an external magnetic field, the same can be done by changing the amount of electrons with a gate and keeping the magnetic field constant. This would allow for fast modulation
'/>"/>

Contact: Daniel Parry
nrlpao@nrl.navy.mil
202-767-2541
Naval Research Laboratory
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Scientists develop way to successfully give nanoparticle therapeutics orally
2. Biomedical Research Foundation (BRF) Recruits Two Eminent Scientists --Pradeep Garg, Ph.D., And Sudha Garg, Ph.D. -- To Run Newly-Created Louisiana Center For Molecular Imaging And Therapy
3. Scientists create perfect solution to iron out kinks in surfaces
4. Scientists invent self-healing battery electrode
5. Stanford scientists create a low-cost, long-lasting water splitter made of silicon and nickel
6. Three World-Renowned Philadelphia Scientists Are Named As Recipients Of The 2013 John Scott Award
7. Key Findings from Social Media and Email Best Practices Guide for Marketing to Life Scientists
8. Scientists Capture Most Detailed Picture Yet of Key AIDS Protein
9. UMass Amherst polymer scientists jam nanoparticles, trapping liquids in useful shapes
10. BioInformatics, LLC New Market Research Report – Social Media and Email Best Practices Guide for Marketing to Life Scientists
11. Pipette.com Launches New Blog Solutions.Pipette.com to Help Scientists Find Liquid Handling Answers
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
NRL scientists demonstrate infrared light modulation with graphene
(Date:8/1/2014)... 2014 Applied DNA Sciences, Inc. ... anti-counterfeiting technology and product authentication solutions, will host a ... its fiscal third quarter results. The Quarterly Report on ... the end of the day on Monday August 11, ... host a conference call beginning at 9:00 A.M. Eastern ...
(Date:8/1/2014)... , Aug. 1. 2014 As one of ... 2014 AACC Annual Meeting & Clinical Lab Expo is ... patient care are introduced to the healthcare world. This ... Expo,s 650 exhibitors will include the latest diagnostic technology ... Advances in smartphones and biosensors have enabled the development ...
(Date:8/1/2014)... , August 1, 2014 According ... Research "Biophotonics Market - Global Industry Analysis, Size, Share, ... was valued at USD 25.16 billion in 2013, which ... growing at a CAGR of 10.4% from 2014 to ... at  http://www.transparencymarketresearch.com/biophotonics-market.html Increasing demand for accurate ...
(Date:8/1/2014)... Aug. 1, 2014 Cambrex Corporation (NYSE: ... 30, 2014. Highlights , Second ... in the same period last year. , Second quarter ... in the same period last year (see table at the ... guidance increased, excluding the impact of foreign currency, to between ...
Breaking Biology Technology:Applied DNA Sciences to Host Conference Call Tuesday August 12, 2014 2Applied DNA Sciences to Host Conference Call Tuesday August 12, 2014 3Lab-on-a-Chip Technology to Be Featured at 2014 AACC Annual Meeting & Clinical Lab Expo 2Lab-on-a-Chip Technology to Be Featured at 2014 AACC Annual Meeting & Clinical Lab Expo 3Global Biophotonics Market is Expected to Reach USD 50.20 Billion in 2020: Transparency Market Research 2Global Biophotonics Market is Expected to Reach USD 50.20 Billion in 2020: Transparency Market Research 3Global Biophotonics Market is Expected to Reach USD 50.20 Billion in 2020: Transparency Market Research 4Cambrex Reports Second Quarter 2014 Financial Results 2Cambrex Reports Second Quarter 2014 Financial Results 3Cambrex Reports Second Quarter 2014 Financial Results 4Cambrex Reports Second Quarter 2014 Financial Results 5Cambrex Reports Second Quarter 2014 Financial Results 6Cambrex Reports Second Quarter 2014 Financial Results 7Cambrex Reports Second Quarter 2014 Financial Results 8Cambrex Reports Second Quarter 2014 Financial Results 9Cambrex Reports Second Quarter 2014 Financial Results 10Cambrex Reports Second Quarter 2014 Financial Results 11Cambrex Reports Second Quarter 2014 Financial Results 12Cambrex Reports Second Quarter 2014 Financial Results 13Cambrex Reports Second Quarter 2014 Financial Results 14Cambrex Reports Second Quarter 2014 Financial Results 15Cambrex Reports Second Quarter 2014 Financial Results 16
... Medical Technology. Inc.,has been awarded a five-year contract ... VHA Inc. and the University HealthSystem,Consortium (UHC), two ... The agreement makes Liftaem(TM) available to more ... "By using proper equipment such,as Liftaem(TM), hospitals not ...
... 12 VIA Pharmaceuticals,(Nasdaq: VIAP ), ... of,compounds for the treatment of cardiovascular disease, ... board. Joining the clinical advisory,board,s chair, Marc ... Medical School, and Senior Physician, Brigham & ...
... Breakthrough Pain Associated with Chronic Pain Conditions in ... ... Around-the-Clock, FRAZER, Pa., Nov. 12 Cephalon, Inc. (Nasdaq:,CEPH) ... the U.S. Food and Drug Administration (FDA) seeking approval to,market FENTORA(R) ...
Cached Biology Technology:Smart Medical Technology, Inc. Awarded Novation Contract for Ground-breaking Liftaem(TM) System that Aids Lifting and Transferring Patients 2VIA Pharmaceuticals Expands Clinical Advisory Board With Leading Experts in Cardiovascular Disease 2VIA Pharmaceuticals Expands Clinical Advisory Board With Leading Experts in Cardiovascular Disease 3VIA Pharmaceuticals Expands Clinical Advisory Board With Leading Experts in Cardiovascular Disease 4Cephalon Submits Supplemental New Drug Application for FENTORA 2Cephalon Submits Supplemental New Drug Application for FENTORA 3Cephalon Submits Supplemental New Drug Application for FENTORA 4Cephalon Submits Supplemental New Drug Application for FENTORA 5Cephalon Submits Supplemental New Drug Application for FENTORA 6Cephalon Submits Supplemental New Drug Application for FENTORA 7
(Date:8/1/2014)... 10,000 reptile species have been recorded into the ... reptile species and classification, making the reptile species ... world, alongside bird and fish species. , For ... mark the year that reptiles would become the ... include snakes, lizards, turtles, crocodiles, tuataras and amphisbaenians. ...
(Date:8/1/2014)... of the UC Davis Center for Neuroscience and ... Science and Engineering Faculty Fellowship from the U.S. ... will support new work on learning and memory ... , The new project aims to connect neural ... in the cortex and hippocampus, brain regions that ...
(Date:8/1/2014)... of marine mammals have officially named a species ... Sousa sahulensis , according to the Wildlife Conservation ... describing the newly named species is the culmination ... available historical records, physical descriptions, and genetic data ... ranging from the coast of West Africa to ...
Breaking Biology News(10 mins):Reptile Database surpasses 10,000 reptile species 2Reptile Database surpasses 10,000 reptile species 3Scientists name new species of cetacean: The Australian humpback dolphin 2Scientists name new species of cetacean: The Australian humpback dolphin 3
... African Americans are four to five times more likely to ... kidney failure have an increased risk of developing kidney failure, ... skewed risk between races. Previous studies identified variants in a ... gene creates a protein that is a component of HDL, ...
... innovative analysis of how social media can affect the ... by a scientist at Penn State University studying attitudes ... of biology, studied how users of Twitter -- a ... about a new vaccine. He then tracked how the ...
... Now computers are at it again, but this ... itself. An interdisciplinary team of scientists at Vanderbilt ... taken a major step toward this goal by demonstrating ... a biological system and derive the basic mathematical equations ...
Cached Biology News:Better ways to predict kidney disease risk for African Americans 2Better ways to predict kidney disease risk for African Americans 3Twitter data used to track vaccination rates and attitudes 2Twitter data used to track vaccination rates and attitudes 3Twitter data used to track vaccination rates and attitudes 4Robot biologist solves complex problem from scratch 2Robot biologist solves complex problem from scratch 3
... a platform for fully automated systems for ... easily be configured for applications ranging from ... allows closed loop screening, which means it ... generating, cherry picking and follow up studies ...
... Vivaclear centrifugal filters are disposable microfiltration devices for ... in the range 100 l to 500 l. ... accepting 2.2 ml centrifuge tubes. Product Features: ... size Low hold up volume ( ...
... The Caliper Prelude Workstation fully ... as solvent addition, extraction, sample transfer, ... on-line HPLC, and UV detection. The ... compliance with 21 CFR Part 11. ...
... Use in any standard fixed-angle microcentrifuge ... g.,Spin- centrifuge tube filters consist ... a centrifuge tube. They filter by ... HPLC sample preparation, removal of cells ...
Biology Products: