PATENT CLAIM ANALYSIS

Application Number: 15775709
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["250", "349000"]

Abstract:
Disclosed are systems and methods for improving applications involving the generation and detection of electromagnetic radiation at terahertz (THz) frequencies. Embodiments of the systems and methods include the fabrication and use of plasmonic devices that enhance light-matter interaction at the nanometer scale by extreme focusing with nanostructured metals. This plasmonic enhancement is used to produce high efficiency THz photoconductive switches that combine the benefits of low-temperature grown GaAs while using mature 1.55 μm femtosecond lasers operating with photon energy below the GaAs band-gap.

Claim (Index 25):
A system for generating or detecting terahertz signals, comprising:\n a photoconductive switch that includes a semiconductor substrate and a plasmonic resonance structure defined on the semiconductor substrate, the plasmonic resonance structure including:\n a periodic nanostructure-patterned conductor having an array of pattern elements having a pattern period that is less that a free space wavelength of the optical pump beam; \n first and second electrical contacts coupled to opposing sides of the periodic nanostructure-patterned conductor such that a voltage at the first and second electrodes is divided by periods of the array of patterns of the periodic nanostructure-patterned conductor; and \n an optical pump source situated to direct a pump beam to the periodic nano structure-patterned conductor of the photoconductive switch, the pump beam having a photon energy corresponding to about one-half of a band gap energy of the semiconductor substrate, wherein the periodic nanostructure-patterned conductor is configured to direct the pump beam into the semiconductor substrate and produce an associated electric field proximate the periodic nanostructure-patterned conductor.

Metadata:
- Claim Count in Document: 80.0
- Percentile: 93.0
- Lexical Diversity: 1.31343
- Patent Class: 250.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14055825', '14372779', '13281064', '13835243', '15534774']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7158823628073142
- 35 USC 102 Novelty (BERT): 0.5002392198927449
- Combined Prediction Score: 0.6943180485158573
- Mean Citation Score: 235.33594
- Max Citation Score: 283.29074
- Similarity Product: 224.87841726396329

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test