PATENT CLAIM ANALYSIS

Application Number: 16185875
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-05
Patent Classification: ["372", "038050"]

Abstract:
A surface-emitting quantum cascade laser of an embodiment comprises a substrate, an active layer, and a photonic crystal layer. The active layer has optical nonlinearity, and is capable of emitting a first and a second infrared laser light. The photonic crystal layer includes a first and a second region. The rectangular grating of the first region is orthogonal to the rectangular grating of the second region. The first infrared laser light has a wavelength corresponding to a maximum gain outside a first photonic bandgap in a direction parallel to a first side of two sides constituting the rectangular grating. The second infrared laser light has a wavelength corresponding to a maximum gain outside a second photonic bandgap in a direction parallel to a second side of the two sides of the rectangular grating.

Claim (Index 4):
The laser according to  claim 2 , wherein\n the first region and the second region are arranged in a checkerboard pattern, and in each region constituting the checkerboard pattern, difference frequency light of the first infrared laser light and the second infrared laser light is generated by Cherenkov phase matching based on the optical nonlinearity and emitted outward as a terahertz wave from the substrate.

Metadata:
- Claim Count in Document: 21.0
- Percentile: 98.0
- Lexical Diversity: 2.89796
- Patent Class: 372.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15693601', '14919383', '16120808', '15145951', '15251119']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8180864762122538
- 35 USC 102 Novelty (BERT): 0.4761295440183019
- Combined Prediction Score: 0.7838907829928586
- Mean Citation Score: 161.596176
- Max Citation Score: 183.05502
- Similarity Product: 144.9894276236987

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test