Navigation Links
Engineers tune a nanoscale grating structure to trap and release a variety of light waves
Date:2/17/2009

People debating politics are well-advised to shed more light than heat. Engineers working in optical technologies have the same aspiration.

Light waves transmit data with much greater speed than do electrical signals, says Qiaoqiang Gan, a Ph.D. candidate at Lehigh University in Bethlehem, Pa. If they are guided with sufficient precision inside the tiny circuits of an electronic chip, they can bring about applications in spectroscopy, sensing and medical imaging. And they can hasten the advent of faster all-optical telecommunication networks, in which light signals transmit and route data without needing to be converted to electrical signals and back.

To enable light waves to store and transmit data with optimal efficiency, engineers must learn to slow or stop light waves across the various regions of the spectrum.

Gan and his adviser, Filbert J. Bartoli, department chair of electrical and computer engineering, made a major contribution to this effort last year when they developed a graded metal grating structure capable of slowing or stopping terahertz (THz) light waves. The achievement, said Bartoli, "opened a door to the control of light waves on a chip" that could help reduce the size of optical structures, enabling them to be integrated at the nanoscale with electronic devices.

Gan and Bartoli reported their results in June in Physical Review Letters (PRL), an influential international journal. Their article was coauthored by Yujie J. Ding, professor of electrical and computer engineering, and Zhan Fu, a Ph.D. candidate advised by Ding. The researchers are affiliated with Lehigh's Center for Optical Technologies.

Recently, Bartoli's team recorded a second major advance. Working again with Ding, they demonstrated that their grating structure could be scaled down in size to a dimension compatible with light waves in the telecommunications portion of the spectrum.

THz waves measure several hundred m
'/>"/>

Contact: Kurt Pfitzer
kap4@lehigh.edu
610-758-3017
Lehigh University
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Penn engineers design computer memory in nanoscale form that retrieves data 1,000 times faster
2. Penn engineers design computer memory in nanoscale form that retrieves data 1,000 times faster
3. Harvard University engineers demonstrate quantum cascade laser nanoantenna
4. Cardiff University engineers give industry a moths eye view
5. Surface dislocation nucleation: Strength is but skin deep at the nanoscale, Penn engineers discover
6. Engineers make first active matrix display using nanowires
7. Engineers harness cell phone technology for use in medical imaging
8. Nanowires may boost solar cell efficiency, UC San Diego engineers say
9. Engineers demonstrate first room-temperature semiconductor source of coherent Terahertz radiation
10. Engineers whip up the first long-lived nanoscale bubbles
11. University of Pennsylvania engineers reveal what makes diamonds slippery at the nanoscale
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... January 22, 2015 zFlo Motion , ... to announce an exciting product from a new partner. ... solutions over the past 15 years, with offerings in the ... their 3D IMU system (inertial measurement unit), iSen, is opening ...
(Date:1/22/2015)... 2015 Selexis SA, a serial innovation ... Banks (RCBs) used for drug discovery to commercial manufacturing, ... include Next-Generation Sequencing (NGS) data packages. The ... manufacturing by ensuring the integrity of the gene, validation ...
(Date:1/22/2015)... 22, 2015   Cypher Genomics, Inc., the ... SQNM ), the leading molecular diagnostics ... generation noninvasive prenatal tests (NIPT). Through this agreement, ... Mantis™, to advance analysis of clinically-relevant fetal sub-chromosomal ...
(Date:1/22/2015)...  Derma Sciences, Inc. (Nasdaq: DSCI ), ... care, announces that AMNIOEXCEL® and AMNIOMATRIX®, amniotic allografts ... the Premier, Inc. Regenerative Skin Grafting contract portfolio. ... and AMNIOMATRIX® product lines, which continue to be ...
Breaking Biology Technology:3D Motion Capture Just Got Easy 2Selexis Generated Research Cell Banks Now Fully Sequenced Using Next-Generation Sequencing 2Cypher Genomics and Sequenom Announce Development Agreement 2Cypher Genomics and Sequenom Announce Development Agreement 3Cypher Genomics and Sequenom Announce Development Agreement 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 2Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 3Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 5
... Foundation and GRACE announce a free webinar program to ... American Society for Clinical Oncology (ASCO) Annual Meeting held ... of the year, is where the majority of the landmark ... webinar participants will learn the results of the key research ...
... Pharmacyclics, Inc. (Nasdaq: PCYC ) today ... with various institutional investors and its CEO for the ... a registered direct offering at $8.85 per share, the ... the offering, before deducting expenses, are expected to be ...
... for cell-based diagnostics and regenerative medicine therapies. However, being ... desired cell type -- such as muscle, skin, blood ... of these technologies. New research presented on June ... Society for Stem Cell Research (ISSCR) shows that systematically ...
Cached Biology Technology:LUNGevity Hosts Post-ASCO Lung Cancer Recap 2Pharmacyclics Announces Results of Registered Direct Offering 2Pharmacyclics Announces Results of Registered Direct Offering 3Researchers engineer the environment for stem cell development to control differentiation 2Researchers engineer the environment for stem cell development to control differentiation 3
(Date:1/22/2015)... Hall E -   EyeLock Inc. , a market leader ... its EyeLock ID technology integrated in a 3D printed automobile ... Ridge National Laboratory (ORNL) at the 2015 North ... is being used to validate the driver and authorize the ...
(Date:1/22/2015)... , Jan. 21, 2015  Analyst Report Issued by Small ... Brands report showed that planet-wide, transactions at merchants on the ... the total number of credit, debit, and prepaid cards reached ... were victims of fraudulent card usage in 2012, and credit ...
(Date:12/24/2014)... , Dec. 23, 2014  Since its launch in December 2014, the ... eliminate the pain of trying to remember their usernames and ... fused to their smartphones. To assist people who have struggled ... company that created 1U and focuses on redefining identity, announced ...
Breaking Biology News(10 mins):EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 2EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 3$4.80 Near Term Price Target with "Buy" given by CapRock Research for NXT-ID, Inc. (NASDAQ: NXTD) issued by Small Cap IR 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 3
... Contrary to popular belief, the biodiversity of a ... used to support local household livelihoods, according to a ... Science. But biodiversity and resource use are most likely ... systems that receive inputs from local forest users or ...
... Research will recognize 27 recipients of the AACR-Thomas J. Bardos ... Annual Meeting 2011, held here from April 2 to 6. ... Education Award for Undergraduate Students is to inspire science students ... research. The AACR is committed to promoting the education ...
... William Hamilton introduced Inclusive Fitness Theory to predict and ... gene expression. With its many successes, the theory became ... Harvard researchers challenged the theory in the prestigious journal, ... scores of scientists, including Edward Allen Herre and William ...
Cached Biology News:Surprise! Biodiversity and resource use may co-exist in tropical forests 2Surprise! Biodiversity and resource use may co-exist in tropical forests 3AACR awards AACR-Thomas J. Bardos Science Education Award for Undergraduate Students 2AACR awards AACR-Thomas J. Bardos Science Education Award for Undergraduate Students 3Is blood thicker than water? 2
1M stock solution (238mg/ml)...
...
Lipofectin Reagent is the reagent of choice for some cell lines; cells of endothelial derivation transfect well with Lipofectin Reagent....
... siRNA and miRNA Isolation Traditional mRNA ... mRNA and can result in the loss ... mirVana miRNA Isolation Kit purifies all RNA ... double-stranded. Through an enrichment procedure included in ...
Biology Products: