| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8fc0668fd5cbfe23cea7d9bdd5de932a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2021-397 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-636
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-39 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-63
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-39 |
| filingDate |
1989-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1991-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d20631082ad89f5174f72bb60d8f4349
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e2082e61184213ea47d6d27974310a46 |
| publicationDate |
1991-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5054921-A |
| titleOfInvention |
Doppler-free spectroscopy |
| abstract |
A substantially Doppler-free spectrum of an element in a sputtered vapor is obtained by generating the sputtered vapor of the sample in a sputtering cell containing a rare gas and obtaining a saturated absorption spectrum for the vapor. The vapor is sputtered from a cathode including the sample and the pressure of the rare gas in the sputtering cell and the chopping frequency of a laser pump beam employed to obtain the saturated absorption spectrum are selected to reduce the number of detected velocity changing collisions in the cell to substantially eliminate any background Doppler-broadened component from the saturated absorption spectrum which is thereby a substantially Doppler-free spectrum. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102135547-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102135547-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8605282-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108645816-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101995384-A |
| priorityDate |
1989-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |