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:5/6/2015)... Biotherapeutics (NASDAQ: NWBO) ("NW Bio"), a U.S. biotechnology company developing ... Linda Powers , NW Bio CEO, will present a ... solid tumor cancers and the Company,s multiple clinical programs at ... , , DATE: , , , Thursday, May 7, ... 12:15 PM EDT , , , , LINK: , ...
(Date:5/6/2015)... May 6, 2015 Dr Jaspreet Singh ... University, will deliver a speech at the 2015 Asian Starch ... Shanghai New Expo Center.  , ... to attendees the topic: ,Potato Starch: A Potential Source ... Foods., Co-editor of a 528 page text ...
(Date:5/5/2015)... N.J. , May 5, 2015 Roka Bioscience, ... on providing advanced testing solutions for the detection of foodborne ... present at the Bank of America Merrill Lynch 2015 Health ... will be held at Encore at the Wynn, ... webcast of the presentation will be available through the investor ...
(Date:5/5/2015)... Mass. , May 5, 2015 Psyche ... strategic alliance which offers a first-of-its-kind platform that helps ... access to lab results, transforms the way patients engage ... Luminate Health provides a HIPAA-compliant digital ... to access, manage, and understand their lab results, and ...
Breaking Biology Technology:NW Bio To Webcast, Live, at VirtualInvestorConferences.com On May 7 2NW Bio To Webcast, Live, at VirtualInvestorConferences.com On May 7 3Potato Starch: A Potential Source for the Creation of Next Generation Bulk-ingredients and Smart Foods 2Psyche Systems Corporation Forms Strategic Alliance with Luminate Health to Provide First-of-its-kind Patient Access Solution 2Psyche Systems Corporation Forms Strategic Alliance with Luminate Health to Provide First-of-its-kind Patient Access Solution 3
... 31, 2012  bioTheranostics, Inc., a bioMerieux company that ... treatment, has introduced a new product line of ... pathway interrogation called PRECIS Precision Medicine by bioTheranostics(SM). ... partners accurate diagnosis of primary tumor site and ...
... rap music can be harnessed to power a new type ... body. Acoustic waves from music, particularly rap, were found ... ultimately help to treat people stricken with aneurisms or incontinence ... a vibrating cantilever, a thin beam attached at one end ...
... The technique builds on previous research in which microbubbles were ... produce an oil which can be processed to create a ... important alternative to fossil fuels and algae, in particular, has ... now, however, there has been no cost-effective method of harvesting ...
Cached Biology Technology:bioTheranostics Launches Precision Medicine Biomarkers for Tumor Pathway Interrogation 2bioTheranostics Launches Precision Medicine Biomarkers for Tumor Pathway Interrogation 3Rap music powers rhythmic action of medical sensor 2Rap music powers rhythmic action of medical sensor 3Microbubbles provide new boost for biofuel production 2
(Date:4/9/2015)... , April 9, 2015 Synaptics Inc. (NASDAQ: ... announced today that it will report financial results for ... 23, 2015, after the close of market. The company ... investors at 2:00 p.m. PT (5:00 p.m. ET), during ... To participate on the live call, analysts and investors ...
(Date:4/2/2015)... , April 2, 2015 ... Q1 2015 attributed to somewhat higher than 125 MSEK. ... the year-end report 2014 that revenues for Q1 2015 ... the company reported for Q4 2014. The operating result ... be negative. The complete interim report will as previously ...
(Date:3/31/2015)... NEW YORK , March 31, 2015   ... announced the launch of the Post-Surgical Pain Management TRACKER, ... data products tracking usage trends in the medical device ... monthly access to data including treatment volumes, market share, ... manage the pain associated with joint surgery. ...
Breaking Biology News(10 mins):Synaptics to Report Third Quarter Results on April 23 2Fingerprint Cards Revises Revenues for Q1 2015 2Guidepoint Launches Post-Surgical Pain Management TRACKER 2Guidepoint Launches Post-Surgical Pain Management TRACKER 3
... CA -- Li Qian, PhD, has won the Louis ... for Young Investigators from the American Heart Association (AHA), ... that a Gladstone Institutes researcher has been the recipient. ... Gladstone -- a leading and independent biomedical-research organization -- ...
... 2011   Life Technologies Corporation (NASDAQ: ... company has introduced its GeneArt® Algae Engineering Kits, ... systems for photosynthetic microalgae Chlamydomonas reinhardtii ... model organisms for the study of photosynthesis, circadian ...
... is available in French . , MONTREAL, November ... a leukemic relapse in young patients is a step closer ... and the University of Montreal. Approximately 20 percent of young ... umbilical cord blood will experience leukemic relapse. The researchers, findings, ...
Cached Biology News:Gladstone scientist receives American Heart Association's Katz prize for cardiovascular research 2GeneArt® Algae Engineering Kits by Life Technologies™ 2GeneArt® Algae Engineering Kits by Life Technologies™ 3New hope for young leukemia patients? 2
Yields DNA greater than 50 kb in length from yeast, fungi, Gram neg. and Gram pos. bacteria...
Anti-human L-Ficolin, Clone GN4, Monoclonal Antibody...
B3GALT2 Immunogen: B3GALT2 (NP_003774, 324 a.a. ~ 423 a.a) partial recombinant protein with GST tag. Storage: -20 C, Avoid Freeze/Thaw Cycles *Available for distribution in the US only...
... Rabbit polyclonal to ThPok ( Abpromise for ... Synthetic peptide conjugated to KLH derived from within ... (Note: the amino acid sequence is proprietary) ... .) Entrez Gene ID: ...
Biology Products: