Navigation Links
Scientists demonstrate laser with controlled polarization
Date:4/13/2009

Cambridge, Mass. April 13, 2009 Applied scientists at the Harvard School of Engineering and Applied Sciences (SEAS) in collaboration with researchers from Hamamatsu Photonics in Hamamatsu City, Japan, have demonstrated, for the first time, lasers in which the direction of oscillation of the emitted radiation, known as polarization, can be designed and controlled at will. The innovation opens the door to a wide range of applications in photonics and communications. Harvard University has filed a broad patent on the invention.

Spearheaded by graduate student Nanfang Yu and Federico Capasso, Robert L. Wallace Professor of Applied Physics and Vinton Hayes Senior Research Fellow in Electrical Engineering, both of SEAS, and by a team at Hamamatsu Photonics headed by Dr. Hirofumi Kan, General Manager of the Laser Group, the findings will be published as a cover feature of the April 13 issue of Applied Physics Letters.

"Polarization is one of the key features defining a laser beam. Controlling it represents an important new step towards beam engineering of lasers with unprecedented flexibility, tailored for specific applications," explains Capasso. "The novelty of our approach is that instead of being conducted externally, which requires bulky and expensive optical components, manipulation of the beam polarization is achieved by directly integrating the polarizer on the laser facet. This compact solution is applicable to semiconductor lasers and other solid-state lasers, all the way from communication wavelengths to the mid-infrared and Terahertz spectrum".

Light sources with a desirable polarization state are useful for a wide variety of applications. For example, satellite communications use two orthogonal polarizations to double the capacity of the channel; circularly-polarized light sources are necessary to detect certain biomolecules; and laser sources with a variety of polarization states have relevance for quantum cryptograph
'/>"/>

Contact: Michael Patrick Rutter
mrutter@seas.harvard.edu
617-496-3815
Harvard University
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Gladstone scientists uncover potential mechanism of memory loss in Alzheimers disease
2. Three Studies by Independent Scientists Highlighting Pressure Cycling Technology (PCT) to be Presented this Week at the British Mass Spectrometry Societys 29th Annual Meeting
3. Social Network for Scientists Marks Ten Years Online
4. Scientists synthesize memory in yeast cells
5. Scientists synthesize memory in yeast cells
6. University of Leicester scientists discover technique to help friendly bacteria
7. Scientists discover how cancer may take hold
8. Yale scientists make 2 giant steps in advancement of quantum computing
9. New Scientists Boost Disease-based Research at Boston Biomedical Research Institute
10. Scientists say sabercat bit like a pussycat
11. New Corporate Website Launched - Focus on Life Scientists, Flow Cytometrists, & Clinicians
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists demonstrate laser with controlled polarization
(Date:8/28/2015)... ... 2015 , ... Since the initial launch of FireflySci Inc. (FFS) in early 2015, the company ... Images such as the Fonz in a lab coat and Large Marge have been ... spectroscopy field. , FireflySci is proud to be the only cuvette manufacturer is ...
(Date:8/27/2015)... Aug. 27, 2015 /PRNewswire/ - Portage Biotech Inc. ... and Biohaven Pharmaceutical Holding Company Limited (Biohaven), announced ... I study of BHV-0223, a glutamate modulating agent. ... BHV-0223 and recently obtained clearance from the U.S. ... human testing. Portage holds 54% equity interest in ...
(Date:8/27/2015)... , Aug. 27, 2015 HUYA Bioscience International ... of the Japan Society of HTLV-1, held this week ... The purpose of the Society is to promote research ... development of medical technology and research related to these ... "HUYA is proud to support this prestigious ...
(Date:8/27/2015)... , Aug. 27, 2015 In ... by FedEx, UPS and The US Postal Service ... specimens classified as ,select agents, by the CDC, ... of handling these sensitive shipments. Marken ... transportation regulations, trained and certified personnel to ensure ...
Breaking Biology Technology:Cuvette Manufacturer FireflySci Launches Back to School Deals with Complimentary Shipping On All Orders 2Portage's Biohaven doses first human subject in Phase 1 trial with lead drug candidate BHV-0223 2Portage's Biohaven doses first human subject in Phase 1 trial with lead drug candidate BHV-0223 3Portage's Biohaven doses first human subject in Phase 1 trial with lead drug candidate BHV-0223 4HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 2HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 3HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 4Marken Ensures Safe Transportation Of Select Agents And Toxins 2
... 2009 (BRONX, NY) An innovative drug-delivery system ... shows promise for topical treatment of erectile dysfunction (ED), ... Einstein College of Medicine of Yeshiva University. ... of animals, could potentially prevent side effects associated with ...
... , , MENLO PARK, Calif., Sept. ... announced today that John J. Young, Jr. has been elected to ... become the SRI Board,s tenth member, joining a group that includes ... "Throughout his career, John has been a champion of ...
... 18 London Genetics Limited, which,expedites pharmacogenetic partnerships ... in genetics research, announces today,several prestigious appointments to ... include Dr Barrie Ward as Chairman, will drive ... importance of pharmacogenetics in drug,development increases. They bring ...
Cached Biology Technology:Topical erectile dysfunction therapy shows promise 2Topical erectile dysfunction therapy shows promise 3John J. Young, Jr. Joins SRI Board of Directors 2John J. Young, Jr. Joins SRI Board of Directors 3New Appointments at London Genetics to Drive Strategy Forward 2New Appointments at London Genetics to Drive Strategy Forward 3New Appointments at London Genetics to Drive Strategy Forward 4
(Date:8/18/2015)... , Aug. 18, 2015  Navitas today ... contributor to the Submission Content Management webinar ... a non-profit forum. Dedicated to the Implementation of ... neutral platform for industry, vendors, health authorities, ... and work towards a standard method of ...
(Date:8/12/2015)... SPRINGS, Florida , August 12, 2015 ... the pace of mobile payment innovation and advanced biometrics ... to replace the way consumers rely on using their ... ahead with reinventing the future for payment services led ... (NASDAQ: NXTD ), :  Google, Inc. (NASDAQ: ...
(Date:8/10/2015)... Germany , August 10, 2015 ... in Eye Tracking Technology for more than two decades, ... Platform for integration into all consumer display formats. The ... seamless integration of eye tracking into consumer tablets, laptops, ... reality smart glasses. Omnivision,s leading sensor technology contributes to ...
Breaking Biology News(10 mins):Navitas, a Key Contributor in IRISS Forum Webinar 2Navitas, a Key Contributor in IRISS Forum Webinar 3Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 2Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 3Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 4Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 5Digital Wallet Devices & Mobile Payment Management Services Gain a Distinct Advantage in the Digital Payment Evolution as Demand Continues to Grow 6SMI Completes OEM Eye Tracking Platform to Cover All Consumer Displays 2SMI Completes OEM Eye Tracking Platform to Cover All Consumer Displays 3
... mantle of summer pest, cicadas are perhaps the most curious. They ... they taste good in chocolate, but as the drowning din of ... less if they emerged more often. Cicadas are unique among ... why would anyone actually want to replicate theses sounds? A ...
... rhythms can boost the body,s ability to fight intestinal ... suggests that targeted treatments may be particularly effective for ... strong immune system response governed by circadian genes. It ... pattern as experienced by, say, night-shift workers or ...
... a human gene for schizophrenia and exposed to lead ... their brains consistent with schizophrenia. Scientists at Columbia University,s ... University School of Medicine say their findings suggest a ... factor, and open an avenue to better understanding the ...
Cached Biology News:Secrets of the cicada's sound 2Secrets of the cicada's sound 3Circadian rhythms control body's response to intestinal infections, UCI-led study finds 2Lead acts to trigger schizophrenia 2