U.S. flag
        An official website of the United States government
          Here’s how you know
        Here’s how you know**Official websites use .gov**
              
              A **.gov** website belongs to an official government organization in the United States.
        **Secure .gov websites use HTTPS**
              
              A **lock** (  A locked padlock
) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. https://www.nist.gov/pml/quantum-measurement/atomic-spectroscopy/atomic-spectroscopy-group-classical-spectroscopy
  Search NIST
    Search
              Menu

      


Close
    Topics
        All Topics
                                                        Advanced communications
                                                        Artificial intelligence
                                                        Bioscience
                                                        Buildings and construction
                                                        Chemistry
                                                        Climate
                                                        Cybersecurity
                                                        Electronics
                                                        EnergyEnvironment
                                                        Fire
                                                        Forensic science
                                                        Health
                                                        Information technology
                                                        Infrastructure
                                                        Manufacturing
                                                        Materials
                                                        Mathematics and statisticsMetrology
                                                        Nanotechnology
                                                        Neutron research
                                                        Performance excellence
                                                        Physics
                                                        Public safety
                                                        Resilience
                                                        Standards
                                                        Transportation
            Publications
            Labs & Major Programs
        Laboratories
                                Communications Technology Laboratory
                                  Engineering Laboratory
                                  Information Technology Laboratory
                                  Material Measurement Laboratory
                                  Physical Measurement LaboratoryUser Facilities
                                NIST Center for Neutron Research
                                  CNST NanoFab
                                                        Research Test Beds
                                                        Research Projects
                                                        Tools & InstrumentsMajor Programs
                                Baldrige Performance Excellence Program
                                  CHIPS for America Initiative
                                  Manufacturing Extension Partnership (MEP)
                                  Office of Advanced Manufacturing
                                  Special Programs Office
                                  Technology Partnerships Office
            Services & Resources
        Standards and Measurements
                                Calibration Services
                                  Laboratory Accreditation (NVLAP)
                                  Quality System
                                  Standard Reference Materials (SRMs)
                                  Standards.gov
                                  Time Services
                                  Office of Weights and MeasuresSoftware
                                                        Data
                                Chemistry WebBook
                                  National Vulnerability Database
                                  Physical Reference Data
                                  Standard Reference Data (SRD)
                                                        Storefront
                                                        License & PatentsComputer Security Resource Center (CSRC)
                                                        NIST Research Library
            News & Events
        News
                                                        Events
                                                        Blogs
                                                        Feature Stories
                                                        AwardsVideo Gallery
                                                        Image Gallery
                                                        Media Contacts
            About NIST
        About Us
                                Leadership
                                  Organization Structure
                                  Budget & Planning
                                                        Contact Us
                                                        Visit
                                                        Careers
                                Student programsWork with NIST
                                                        History
                                NIST Digital Archives
                                  NIST Museum
                                  NIST and the Nobel
                                                        Educational Resources
 
 Physical Measurement Laboratory /                  Quantum Measurement Division
      Atomic Spectroscopy Group
    
      
  Laboratory Homepage
          Division Homepage
          Groups
                            Expand or Collapse
          Applied Electrical Metrology
                      Atomic Spectroscopy
                      Fundamental Constants Data Center
                      Fundamental Electrical Measurements
                      Laser Cooling and Trapping
                      Mass and Force
                      Quantum Optics
          Joint Quantum Institute (JQI)
          Objectives
                            Expand or Collapse
          Critically Evaluated Data
                      Electrical, Mass, and Force Metrology
                      Nanoscale and Quantum Metrology
                      Quantum Nature of Light and Matter
          Staff DirectoryAtomic Spectroscopy Group: Classical Spectroscopy

Share
  Facebook
                      Linkedin
                      Twitter
                      Email

Each spectrograph in the Atomic Spectroscopy Group is among the most powerful of its type in the world. Collectively, the set of instruments available to our scientists and guest researchers is unparalleled in the world. Our spectrographs allow us to record spectra over a large range: from the extreme ultraviolet (1 nm) to the near infrared (1200 nm). We've collected spectra on hundreds of atomic systems over the years for data compilation and astronomical applications, as well as for more applied research in the lighting and microlithography fields.**Our instruments include:**10.7 m Normal Incidence Vacuum SpectragraphSpectral Range: 30 nm to 500 nmPlate Factor: 0.078 nm/mm (1st order)Detection: Photographic or Scanning Photoelectric10.7 m Eagle SpectrographSpectral Range: 200 nm to 1000 nmPlate Factor: 0.078 nm/mm (1st order)Detection: Photographic10.7 m Grazing Incidence Vacuum SpectrographSpectral Range: 3 nm to 70 nmPlate Factor: 0.012 nm/mm @ 7 nm (1st order)Detection: Photographic3.3 m High-resolution Plane-grating SpectrographSpectral Range: 190 to 1200 nmPlate Factor: 0.013 to 0.11 nm/mm (order dependent)Detection: Photographic2.2 m Grazing Incidence Vacuum SpectrographSpectral Range: 1 nm to 60 nmPlate Factor: 0.016 nm/mm @ 1 nm (1st order)Detection: Photographic10.7 m Normal Incidence Spectrograph
10.7 m Normal Incidence Spectrograph**Recent Projects:****Precision measurement of F2 laser**We recently used our 10.7 m normal incidence vacuum spectrograph to make precision measurements of the wavelengths of lasing lines in a commercial molecular fluorine laser at 157 nm.**Spectra of highly-ionized atoms for fusion plasma diagnostics**As part of our continuing effort to provide spectroscopic data needed for diagnosis of controlled fusion plasmas we use our 10.7 m grazing incidence spectrograph to observe spectra of moderately- and highly-ionized atoms Spectra of Ar, Zr, Nb, Mo, and W are of particular importance due to their presence in the edge-plasma regions of tokamak machines.**Spectrum and energy levels of singly-ionized mercury (Hg II)**The spectra and energy levels of singly-ionized Hg was observed with out 10.7 m vacuum and air spectrographs. This spectra is of particular interest because it plays a prominent role in some chemically peculiar stars recently observed with the Hubble Space Telescope.
  Spectroscopy

    
    Contacts
      
        

Gillian Nave
    
      
  gillian.nave@nist.gov
  (301) 975-4311

Created May 27, 2009, Updated November 15, 2019
 HEADQUARTERS
            100 Bureau Drive
              Gaithersburg, MD 20899301-975-2000
            Webmaster | Contact Us | Our Other Offices
        Twitter
            
Facebook
            
LinkedIn
            
Instagram
            
YouTube
            
Giphy
            
RSS Feed
            
Mailing List
                              How are we doing? Feedback

  
  Site Privacy
                      Accessibility
                      Privacy Program
                      Copyrights
                      Vulnerability Disclosure
                      No Fear Act Policy
                      FOIA
                      Environmental Policy
                      Scientific Integrity
                      Information Quality Standards
                      Commerce.gov
                      Science.gov
                      USA.gov
                      Vote.gov