Navigation Links
'Comb on a chip' powers new NIST/Caltech atomic clock design
Date:7/22/2014

limeter-wide silica disk that generates the frequency comb for the new clock.

The new microcomb clock uses a laser to excite the Caltech disk to generate a frequency comb, broadens the spectrum using nonlinear fiber, and stabilizes two comb teeth (individual frequencies) to energy transitions in rubidium atoms that "tick" at optical frequencies. (Conventional rubidium atomic clocks operate at much lower microwave frequencies.) The comb converts these optical frequency ticks to the microwave domain.

Thanks to the gear-like properties of the disk and the comb, the output is also 100 times more stable than the intrinsic ticking of the rubidium atoms. According to Diddams. "A simple analogy is that of a mechanical clock: The rubidium atoms provide stable oscillationsa pendulumand the microcomb is like a set of gears that synthesizes optical and microwave frequencies."

The center of the comb spectrum is locked to an infrared laser operating at 1560 nanometers, a wavelength used in telecommunications.

NIST researchers have not yet systematically analyzed the microcomb clock's precision. The prototype uses a tabletop-sized rubidium reference. The scientists expect to reduce the instrument size by switching to a miniature container of atoms like that used in NIST's original chip-scale atomic clock.*** Scientists also hope to find a more stable atomic reference.

The microcomb chip was made by use of conventional semiconductor fabrication techniques and, therefore, could be mass produced and integrated with other chip-scale components such as lasers and atomic references. NIST researchers expect that, with further research, the microcomb clock architecture can achieve substantially better performance in the future.


'/>"/>

Contact: Laura Ost
laura.ost@nist.gov
303-497-4880
National Institute of Standards and Technology (NIST)
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Hong Kong Department of Health to Combat Sudden Cardiac Arrest With Powerheart AEDs
2. NKTR-102 Demonstrates Synergistic Anti-Tumor Activity in Combination with Pegylated Liposomal Doxorubicin in Platinum-Resistant Ovarian Cancer
3. Metabolex Announces Positive Results From its Clinical Study of Arhalofenate in Combination With Febuxostat
4. Palm Beach Residents to Learn How the Future of Regenerative Medicine Will Combat Aging
5. Baxter Initiates Phase I Clinical Trial of Longer-acting Recombinant FVIII Treatment for Hemophilia A
6. Argos Therapeutic Arcelis™ Immunotherapy AGS-003 in Combination With Sunitinib Shows Statistically Significant Correlation of Immune System Response to Overall Survival in Phase 2 Study in Patients with Advanced Renal Cell Carcinoma (RCC)
7. New nano-material combinations produce leap in infrared technology
8. Jennerex Announces First Patient Treated in Phase 1/2 Clinical Trial of JX-594 in Combination with Irinotecan in Patients with Metastatic Colorectal Cancer
9. Honeycombs of magnets could lead to new type of computer processing
10. Syndax Pharmaceuticals Announces Start of Phase 1/2 Study of Entinostat in Combination with Lapatinib in HER2-Positive Metastatic Breast Cancer
11. Inspiration Biopharmaceuticals Announces Filing of Biologics License Application (BLA) for IB1001, a Recombinant Factor IX Product for People with Hemophilia B
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
'Comb on a chip' powers new NIST/Caltech atomic clock design
(Date:8/26/2015)... , Aug. 26, 2015  Roka Bioscience, Inc. (NASDAQ: ... providing advanced testing solutions for the detection of foodborne ... present at the Sidoti & Company Emerging Growth Conference ... be held at the New York Marriott Marquis. ... be available through the investor relations section of Roka ...
(Date:8/26/2015)... , Aug. 26, 2015  The Diabetes ... the University of Miami Miller School of Medicine, ... clinical trial to test for the first time ... successfully completed.  This FDA approved Phase I/II study ... transplantation and is an important first step toward ...
(Date:8/26/2015)... , Aug. 26, 2015 Intrexon Corporation ... announced today the closing of its previously announced public ... by the underwriters of their option to purchase an ... offering price of $41.00 per share.  The exercise of ... of common stock sold by Intrexon to 5,609,756 shares ...
(Date:8/26/2015)... , Aug. 26, 2015 China Cord Blood ... China,s leading provider of cord blood collection, ... storage services, today announced that the Company has been ... an entity wholly owned by Mr. Yuen Kam, chairman ... acquired the outstanding shares (the "Shares") of  Excellent China ...
Breaking Biology Technology:Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 2Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 3Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 4Intrexon Announces Closing of $230 Million Public Offering of Common Stock including Full Exercise of Underwriters' Option to Purchase Additional Shares 2Intrexon Announces Closing of $230 Million Public Offering of Common Stock including Full Exercise of Underwriters' Option to Purchase Additional Shares 3Intrexon Announces Closing of $230 Million Public Offering of Common Stock including Full Exercise of Underwriters' Option to Purchase Additional Shares 4China Cord Blood Corporation Receives Notice of Transactions Regarding its 7% Senior Convertible Notes Due 2017 2China Cord Blood Corporation Receives Notice of Transactions Regarding its 7% Senior Convertible Notes Due 2017 3
... the tiny island nation of The Maldives , hovering just ... and expectations, she would be off the grid. No Internet, no ... maybe not. After 36 hours in transit, we arrived at the ... and out into the humid night air. Greeting us on the ...
... of TomoTherapy's focus has been on sales in ... the sale is to a hospital that bears the name ... and device manufacturer has sold its Hi-Art system to the ... prize winning physicist and chemist Marie Curie , also ...
... sky. It's a bird. It's a plane. It's super hype - ... single bound. Indeed, lately the media has been saturated with stories ... the mass exodus of Baby Boomers from the workforce. , ,Many ... trend and its impacts on businesses are black and white. But ...
Cached Biology Technology:Coveted vacation "disconnect" was elusive 2Coveted vacation "disconnect" was elusive 3Shades of gray: Business impacts of an aging workforce 2Shades of gray: Business impacts of an aging workforce 3Shades of gray: Business impacts of an aging workforce 4Shades of gray: Business impacts of an aging workforce 5Shades of gray: Business impacts of an aging workforce 6
(Date:8/12/2015)... 12, 2015  New research unveiled at Black ... phones to steal users, fingerprints. Information released today ... fingerprint scanners on mobile devices, making the security ... biometrics on mobile devices, HYPR Corp. recently released ... authentication systems with strong cryptographic security. More information ...
(Date:8/11/2015)... 11, 2015 Today, ZUK announced its Android ... well as expected revenues in 2015 that relate to sales of ... guidance of approximately 2,200 MSEK for 2015. Jörgen Lantto, ... prominent smartphone manufacturer in China ... selected FPC1 155 for Z1 ...
(Date:8/10/2015)... , August 10, 2015 The ... offers comprehensive analysis of the global border security ... generate revenues of $16.4bn in 2015. Now: Border ... is an example of the business critical issue you need ... read visiongain ,s objective analysis of how this will ...
Breaking Biology News(10 mins):HYPR Corp. Addresses Android Vulnerability That Exposes Ecosystem-wide Biometric Security Challenges 2HYPR Corp. Addresses Android Vulnerability That Exposes Ecosystem-wide Biometric Security Challenges 3FPC's Touch Fingerprint Sensor FPC1155 in ZUK's Smartphone Z1 2Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 2Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 3Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 4Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 5Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 6Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 7Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 8Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 9
... H. Blackburn, PhD, 60, of the University of California, San ... in Physiology or Medicine. Blackburn shares the award with ... and Jack W. Szostak of Harvard Medical School. The ... normal cell function, as well as in cell aging and ...
... Upgrade Extends Range to Beyond-Line-of-Sight Communications Through Integration ... Terminals , WASHINGTON, Oct. 5 ... (NYSE: HRS ), an international communications and ... broadband satellite data capability to its JTRS-approved Falcon ...
... WASHINGTON (October 5, 2009) To help draw attention to ... (PCNA) has released findings from a new national consumer survey ... the leading cause of death in the U.S. The ... Americans incorrectly believe that the processes related to heart disease ...
Cached Biology News:UCSF scientist receives Nobel Prize in Physiology or Medicine 2UCSF scientist receives Nobel Prize in Physiology or Medicine 3Harris Corporation Adds Broadband Satellite Data Mode to JTRS-Approved Falcon III(R) AN/PRC-117G Multiband Manpack Radio 2Harris Corporation Adds Broadband Satellite Data Mode to JTRS-Approved Falcon III(R) AN/PRC-117G Multiband Manpack Radio 3Americans concerned about heart health, but not proactive enough to prevent it 2
...
... Topo I, Wild Type Liquid. In ... DTT, 200 µM EDTA, 20% glycerol, pH 7.9. ... I) is a monomeric protein of 765 amino ... the relaxation of both positive and negative supercoiled ...
RNase-Free DNase 50 l...
Request Info...
Biology Products: