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:3/5/2015)... (PRWEB) March 05, 2015 North ... Pierre Noel, M.D., Professor of Medicine, Mayo Clinic ... Company’s Board of Directors. , Entegrion’s ... extremely fortunate to have Dr. Noel, a distinguished ... healthcare organization, join Entegrion’s Board. His expertise in ...
(Date:3/5/2015)... e2b teknologies , a premier Sage ERP ... today announced a leading independent multi-specialty physician group practice ... the latest version of Sage 100 ERP . ... kind in the region, the organization has an extensive ... and data accessibility are paramount to their ongoing success. ...
(Date:3/4/2015)... , March 4, 2015 The UPMC ... its 2015 Fellows in the Emerging Leaders in Biosecurity ... future leaders in the field of biosecurity, UPMC has ... from a wide array of backgrounds, including biological science, ... sector. "With the vision and support ...
(Date:3/4/2015)... 4, 2015 /CNW/ - Resverlogix Corp. (TSX:RVX) (the ... a collaborative research program with Emerald Logic, ... Collective Evolution Technology (FACET), Emerald Logic analyzed ... obtained from each of 798 patients who ... trials ASSERT, SUSTAIN and ASSURE. The objective ...
Breaking Biology Technology:Entegrion Announces Appointment of Pierre Noel, MD, to Its Board of Directors 2Physician Group Practice Chooses e2b teknologies to Support Its Upgrade to Sage 100 ERP 2014 2UPMC Center for Health Security Announces 2015 Emerging Leaders in Biosecurity 2UPMC Center for Health Security Announces 2015 Emerging Leaders in Biosecurity 3Resverlogix Collaborates with Emerald Logic to Identify Factors Driving Drug Response and Efficacy in Phase 2 Program 2Resverlogix Collaborates with Emerald Logic to Identify Factors Driving Drug Response and Efficacy in Phase 2 Program 3Resverlogix Collaborates with Emerald Logic to Identify Factors Driving Drug Response and Efficacy in Phase 2 Program 4
... A Milestone Reached to Commercialize Leading OAB Drug ... /Xinhua-PRNewswire-FirstCall/ -- BMP,Sunstone Corporation (Nasdaq: BJGP ) ... Clinical Trial Application ("CTA") for Enablex(R),(Darifenacin) was officially ... CTA acceptance is a key SFDA requirement prior ...
... Grant from Otsuka ... America Pharmaceutical, Inc., ROCKVILLE, Md., May 6 ... individual,as the recipients of the fifth annual APF Awards for Advancing ... Benefit in,Washington, D.C. Each organization or individual was presented a plaque,along ...
... Biomatrica, the leader in room,temperature biological sample stabilization, ... Vice President of Sales and Marketing.,Biomatrica,s interim Vice President ... part of the company and will continue to serve ... Dowling brings fourteen years of sales and marketing experience ...
Cached Biology Technology:BMP Sunstone Receives SFDA Acceptance for Enablex(R) Clinical Trial 2BMP Sunstone Receives SFDA Acceptance for Enablex(R) Clinical Trial 3American Psychiatric Foundation Announces Recipients of 2008 Awards for Advancing Minority Mental Health 2American Psychiatric Foundation Announces Recipients of 2008 Awards for Advancing Minority Mental Health 3American Psychiatric Foundation Announces Recipients of 2008 Awards for Advancing Minority Mental Health 4American Psychiatric Foundation Announces Recipients of 2008 Awards for Advancing Minority Mental Health 5Trisha Dowling Joins Biomatrica as Vice President, Sales and Marketing 2
(Date:3/4/2015)... Mar. 04, 2015 Research and Markets ... of the "Global Biometrics Market Forecast and ... The market for biometric authentication systems is ... 14% till 2020 The driving forces ... security needs, government projects and constant development in ...
(Date:3/2/2015)... HUNTSVILLE, Ala. , March 2, 2015 /PRNewswire/ ... transaction processing. Data protection company Tharon Rankins Enterprises ... product that provides an ultra-safe way for businesses ... as their financial transactions. Beconux ... by Tharon Rankins Enterprises. Functioning similarly to an ...
(Date:2/24/2015)... Feb. 24, 2015 This report analyzes the worldwide ... separate comprehensive analytics for the US, Canada ... , Asia-Pacific , Middle East ... estimates and forecasts are provided for the period 2013 through ... markets. Market data and analytics are derived from primary and ...
Breaking Biology News(10 mins):Global Biometrics Market Forecast and Opportunities, 2020 2Global Biometrics Market Forecast and Opportunities, 2020 3Personal Data Protection Company Launches New Product 2World Iris Biometrics Industry 2World Iris Biometrics Industry 3World Iris Biometrics Industry 4World Iris Biometrics Industry 5World Iris Biometrics Industry 6World Iris Biometrics Industry 7World Iris Biometrics Industry 8World Iris Biometrics Industry 9World Iris Biometrics Industry 10World Iris Biometrics Industry 11
... the western world, but new therapies based on stem cells ... held back however by the difficulty testing new therapies on ... value owing to differences in structure and activity. The only ... create computerised in-silico models that simulate the real heart and ...
... ocean floors, earths system of mid-ocean ridges plays a pivotal ... movements to heat flow from the interior, and the chemistry ... late 1970s that scientists discovered the existence of vast plumbing ... it, then spit it back out from seafloor ventsa process ...
... Methadone is a possible cause of sudden cardiac death even ... primarily for relief of chronic pain or drug addiction withdrawal, ... suggests. The studys findings, described in the January 2008 ... an evaluation of all sudden cardiac deaths in the greater ...
Cached Biology News:The construction of heart modelling leads path to new therapies 2The construction of heart modelling leads path to new therapies 3Quakes under Pacific floor reveal unexpected circulatory system 2Quakes under Pacific floor reveal unexpected circulatory system 3Methadone even at therapeutic levels can kill 2Methadone even at therapeutic levels can kill 3
Useful for determination of glucose and ATP. Packaging: Package sizes are based on hexokinase units. Preparation Unit Definition: One unit will phosphorylate 1.0 mol of D -glucose per min at pH ...
... Physical form: Lyophilized powder ... Preparation Unit Definition: One ... of 2-phosphoglycerate to phospho(enol)pyruvate ... at 25 C. Chem ...
SCCRO (S-17)...
Packaging: 6 bottles for 1 l ready-to-use-solution ID clarifier: ready-to-use solution ...
Biology Products: