photonic crystals
E914951
Photonic crystals are materials with a periodic dielectric structure that manipulates the propagation of light, creating photonic band gaps and enabling strong control over optical phenomena.
All labels observed (2)
| Label | Occurrences |
|---|---|
| distributed Bragg reflectors | 1 |
| photonic crystals canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11265295 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: photonic crystals Context triple: [Purcell effect, occursIn, photonic crystals]
-
A.
Wave Propagation in Periodic Structures
"Wave Propagation in Periodic Structures" is a foundational scientific monograph by Léon Brillouin that systematically develops the theory of wave behavior in periodically structured media, underpinning modern solid-state physics and band theory.
-
B.
Photonics Research
Photonics Research is a peer-reviewed scientific journal focusing on cutting-edge research in photonics, optics, and related technologies.
-
C.
Yablonovitch limit in light trapping
The Yablonovitch limit in light trapping is a fundamental theoretical bound that defines the maximum enhancement of optical path length—and thus light absorption—achievable in a dielectric material using scattering and texturing.
-
D.
Bloch oscillations
Bloch oscillations are periodic oscillations of electrons in a crystal lattice subjected to a constant electric field, arising from the band structure and leading to oscillatory motion in momentum space.
-
E.
Bloch waves
Bloch waves are quantum-mechanical wavefunctions that describe particles, such as electrons, propagating through a periodic crystal lattice and form the basis for understanding electronic band structure in solids.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: photonic crystals Target entity description: Photonic crystals are materials with a periodic dielectric structure that manipulates the propagation of light, creating photonic band gaps and enabling strong control over optical phenomena.
-
A.
Wave Propagation in Periodic Structures
"Wave Propagation in Periodic Structures" is a foundational scientific monograph by Léon Brillouin that systematically develops the theory of wave behavior in periodically structured media, underpinning modern solid-state physics and band theory.
-
B.
Photonics Research
Photonics Research is a peer-reviewed scientific journal focusing on cutting-edge research in photonics, optics, and related technologies.
-
C.
Yablonovitch limit in light trapping
The Yablonovitch limit in light trapping is a fundamental theoretical bound that defines the maximum enhancement of optical path length—and thus light absorption—achievable in a dielectric material using scattering and texturing.
-
D.
Bloch oscillations
Bloch oscillations are periodic oscillations of electrons in a crystal lattice subjected to a constant electric field, arising from the band structure and leading to oscillatory motion in momentum space.
-
E.
Bloch waves
Bloch waves are quantum-mechanical wavefunctions that describe particles, such as electrons, propagating through a periodic crystal lattice and form the basis for understanding electronic band structure in solids.
- F. None of above. chosen
Statements (65)
| Predicate | Object |
|---|---|
| instanceOf |
artificial material
ⓘ
metamaterial ⓘ optical material ⓘ periodic structure ⓘ |
| composedOf |
air holes in high-index material
ⓘ
dielectric materials ⓘ polymers ⓘ semiconductors ⓘ |
| dimension |
1D
ⓘ
2D ⓘ 3D ⓘ |
| exhibits |
complete photonic band gap in some designs
ⓘ
partial photonic band gap in many designs ⓘ photonic band structure ⓘ |
| fieldOfStudy |
electromagnetics
ⓘ
nanophotonics ⓘ optics ⓘ photonics ⓘ |
| governedBy |
Bloch theorem
ⓘ
linked to:
Bloch waves
Maxwell equations ⓘ
linked to:
Maxwell's equations
|
| hasProperty |
Bragg scattering of light
ⓘ
band structure for photons ⓘ direction-dependent propagation ⓘ dispersion engineering capability ⓘ engineerable defect modes ⓘ enhanced light–matter interaction ⓘ frequency-selective transmission ⓘ high quality factor cavities ⓘ periodic dielectric constant ⓘ photonic band gap ⓘ refractive index contrast requirement ⓘ slow light effects ⓘ small mode volume ⓘ strong light confinement ⓘ wavelength-scale periodicity ⓘ |
| relatedTo |
Bragg mirrors
ⓘ
distributed Bragg reflectors ⓘ
linked to:
photonic crystals
metamaterials ⓘ phononic crystals ⓘ |
| requires |
fabrication with periodic feature sizes on the order of the wavelength
ⓘ
sufficient refractive index contrast ⓘ |
| researchedIn |
biophotonics
ⓘ
integrated optics ⓘ optical communications ⓘ quantum information processing ⓘ telecommunications ⓘ |
| usedFor |
LED efficiency enhancement
ⓘ
biosensing ⓘ cavity quantum electrodynamics ⓘ controlling propagation of light ⓘ filtering optical frequencies ⓘ guiding light ⓘ integrated photonics ⓘ low-threshold lasers ⓘ negative refraction devices ⓘ on-chip optical interconnects ⓘ optical resonators ⓘ optical waveguides ⓘ photonic crystal fibers ⓘ quantum optics experiments ⓘ sensing applications ⓘ single-photon sources ⓘ superprism effect devices ⓘ trapping light ⓘ wavelength division multiplexing ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: photonic crystals Description of subject: Photonic crystals are materials with a periodic dielectric structure that manipulates the propagation of light, creating photonic band gaps and enabling strong control over optical phenomena.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: photonic crystals