Navigation Links
RIT leads development of next-generation infrared detectors
Date:7/26/2012

d performance will push the boundaries of infrared astronomy and continue Raytheon's 30-year service to the astronomy community."

Cost constraints limit the availability and scale of the current detector technology, which use small, scarcely produced Cadmium Zinc Telluride wafers.

"Today, a typical state-of-the-art device has 2,048 by 2,048 pixels at a cost around $350,000 to $500,000," Figer says. "Detectors on large telescopes can cost a significant fraction of the total instrument budget. Very large, affordable infrared arrays will be essential for making optimum use of the proposed 30-meter class ground-based telescopes of the future."

"The key to making largerup to 14,000 by 14,000 pixelsand less expensive infrared detectors lies in using silicon wafer substrates, since large silicon wafers are common in the high-volume semiconductor industry and their coefficient of thermal expansion is well-matched to that of the silicon readout circuits," Figer says.

For the last 15 years, scientists have pursued the use of silicon substitutes in the quest for large infrared detectors. Until now, the crystal lattice mismatch between silicon and infrared materials has stymied advancement, causing defects that generate higher dark current, and thus higher noise, reduced quantum efficiency and increased image persistence.

Atoms in a silicon crystal are spaced closer together than those in infrared light-sensitive materials. When the infrared material is grown on the silicon, defects are generated. Photo-generated charge that represents the signal can get stuck and lost, or pop out of the lattice and show up as a phantom signal. The difference in atomic spacing can create the false signal.

Raytheon has developed the prototype detector technology using a method of depositing light-sensitive material onto silicon substrates while maintaining high vacuum throughout the many steps in the process. The material growth is done using
'/>"/>

Contact: Susan Gawlowicz
smguns@rit.edu
585-475-5061
Rochester Institute of Technology
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Chronic inflammation in the brain leads the way to Alzheimers disease
2. Maths formula leads researchers to source of pollution
3. Richer parasite diversity leads to healthier frogs, says University of Colorado study
4. Sloppy shipping of human retina leads IU researchers to discover new treatment path for eye disease
5. TGen leads new National Institutes of Health study of brain tumors
6. University leads £6 million EU project to tackle obesity
7. Researchers reveal how a single gene mutation leads to uncontrolled obesity
8. Piglets in mazes provide insights into human cognitive development
9. NIH funds development of tissue chips to help predict drug safety
10. Gladstone scientists identify critical process in stem cell development
11. The genomics symposium to boost the further development of cancer research
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/5/2015)... , Jan. 27, 2015   Marvin ... globally deployed, innovative test solutions for military, ... delivery of its TS-323 GENASYS Test ... Company (LMSSC). GENASYS is a high-performance PXI-based ... mission-critical applications that require performance functional testing. ...
(Date:2/5/2015)... Feb. 3, 2015 Despite a lack ... industries such as consumer electronics, automotive, storage and ... mount technology (SMT) screen printers. Innovations in electronics ... will push the adoption curve up. Meanwhile, sale ... as glue dispensers are indispensable in the production ...
(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 ...
Breaking Biology News(10 mins):Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 2Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 3Marvin Test Solutions' GENASYS Platform Advances Mission-Critical Aerospace Production Test 4End-user Demand Spurs Global SMT Screen Printers and Glue Dispensers Market 2End-user Demand Spurs Global SMT Screen Printers and Glue Dispensers Market 3EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 2EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 3
... uncanny ability to detect electrical signals while hunting and ... those electrosensory powers to the same type of embryonic ... features in humans. , The discovery, reported by University ... & Development, identifies neural crest cells, which are common ...
... Studies have identified an important circuit in the spinal ... muscles contract and relax. Their findings mark an important ... movements - one of the main obstacles in developing ... circuits are important and understanding how they control the ...
... Comparative Functional Genomics and the University of California, Berkeley ... of microRNA (miRNA) targets in the animal model organism, ... (mRNA) in a specific section, called 3'UTR, and are ... were confirmed through the development of a novel in ...
Cached Biology News:UF scientists trace origin of shark's electric sense 2UF scientists trace origin of shark's electric sense 3Salk researchers make fast strides towards understanding how our body controls walking 2Biologists develop genome-wide map of miRNA-mRNA interactions 2
(Date:2/26/2015)... (NASDAQ: ONCE ) announced today that members ... and Company Health Care Conference on Wednesday, March 4, ... Copley Place. To access the live webcast ... please visit the "Upcoming Events" section within the "News ... www.sparktx.com .  A replay of the webcast will ...
(Date:2/26/2015)... Feb. 26, 2015 Caris Life Sciences® ... the 2015 Genitourinary Cancers Symposium in ... utility of tumor profiling. Both studies utilized Caris ... service, to identify biomarkers that shed light on ... small cell bladder cancer (SCBC). ...
(Date:2/25/2015)... , Feb. 25, 2015 ... drink, is featured in this week,s Power Pitch ... , to discuss the company,s traction and growth ... through the crowd funding site CircleUp. ... products that are validated by neurotechnology, while also ...
(Date:2/25/2015)... 2015 Market Publishers Ltd is happy ... by 9Dimen Research have been recently uploaded to its ... Market Research Report . This research report provides wealth ... the world adhesive mortar industry as well as includes ... major regional markets. It focuses on the main regions ...
Breaking Biology Technology:Spark Therapeutics to Participate in the 35th Annual Cowen and Company Health Care Conference 2Tumor Profiling of Metastatic Prostate and Small Cell Bladder Cancers with Caris Molecular Intelligence Yields Insights into Novel and Conventional Therapeutic Options 2Tumor Profiling of Metastatic Prostate and Small Cell Bladder Cancers with Caris Molecular Intelligence Yields Insights into Novel and Conventional Therapeutic Options 3Tumor Profiling of Metastatic Prostate and Small Cell Bladder Cancers with Caris Molecular Intelligence Yields Insights into Novel and Conventional Therapeutic Options 4Tumor Profiling of Metastatic Prostate and Small Cell Bladder Cancers with Caris Molecular Intelligence Yields Insights into Novel and Conventional Therapeutic Options 5CNBC's Power Lunch Features Neurotechnology Start-up truBrain 2New Research Studies by 9Dimen Research Now Available at MarketPublishers.com 2New Research Studies by 9Dimen Research Now Available at MarketPublishers.com 3New Research Studies by 9Dimen Research Now Available at MarketPublishers.com 4
... Sept. 1, 2011 Asmacure Ltee, a clinical-stage ... receptor agonists for the treatment of asthma and ... Driscoll will present at the 2011 BioPharm America ... provide an overview of Asmacure,s nicotinic acetylcholine receptor ...
... Sept. 1, 2011 Veracyte, Inc., a molecular diagnostics ... announced that new data from researchers at Johns Hopkins ... its Afirma® Gene Expression Classifier for clarifying inconclusive results ... improve patient care and save the healthcare system money. ...
... 1, 2011 The age-old fascination with machines ... fiction literature and cinema, mainly because authors and ... robots" since none had been built yet. According ... largest professional technical association, the distinction between science ...
Cached Biology Technology:Asmacure Ltee to Present at the 2011 BioPharm America Conference 2New Data Suggest Veracyte's Afirma® Gene Expression Classifier Cost-Effectively Resolves Inconclusive Thyroid Nodule FNA Biopsy Results 2New Data Suggest Veracyte's Afirma® Gene Expression Classifier Cost-Effectively Resolves Inconclusive Thyroid Nodule FNA Biopsy Results 3Mind-Controlled Bionic Limbs Holding Promise, and the Demand is Growing say IEEE Experts 2Mind-Controlled Bionic Limbs Holding Promise, and the Demand is Growing say IEEE Experts 3Mind-Controlled Bionic Limbs Holding Promise, and the Demand is Growing say IEEE Experts 4
... DASGIP Overhead Drive for individual and ... for flexible agitation of DASGIP vessels, featuring ... impellers. ,Up to 16 overhead drives ... DASGIP Cultivation Systems fedbatch-pro® and cellferm-pro® for ...
This kit is designed to select cells labeled with biotinylated antibodies. Kit includes reagents for labeling 3 x 10 9 cells and EasySep magnet....
Designed for use with the Agencourt CleanSEQ and Agencourt AMPure 384-well SPRI reagent kits. For use with 384-well thermal cycling plates....
SDS-OutT Precipitation Reagent...
Biology Products: