| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f0c17fb0be15e18e811be589c822b4c8 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2240-11
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2260-33
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2250-43
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2240-55
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2001-0439
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H2001-0264
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B2027-0174 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H1-0248
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H1-0256
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-0252
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-0841
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03H1-00 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B27-01 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03H1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03H1-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03H1-00 |
| filingDate |
2019-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ab5c574166b42b1eaae7dcd34a68d16d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7ff06802243a307ea692f974998d142e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_38d55560e106d414ad50f9a14b4470ae
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2e8cea43b32cc448ebb0abc0f112c822 |
| publicationDate |
2022-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-11327438-B2 |
| titleOfInvention |
Refractive index modulation modification in a holographic grating |
| abstract |
Techniques disclosed herein relate to modifying refractive index modulation in a holographic optical element, such as a holographic grating. According to certain embodiments, a holographic optical element or apodized grating includes a polymer layer comprising a first region characterized by a first refractive index and a second region characterized by a second refractive index. The holographic optical element or apodized grating includes a plurality of nanoparticles dispersed in the polymer layer. The nanoparticles have a higher concentration in either the first region or the second region. In some embodiments, the nanoparticles may be configured to increase the refractive index modulation. In some embodiments, the nanoparticles may be configured to apodize the grating by decreasing the refractive index modulation proximate to sides of the grating. The refractive index may be modulated by applying a monomer reservoir buffer layer to the polymer layer, either before or after hologram fabrication. |
| priorityDate |
2019-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |