Pathogen detection and neutralization using deep UV-C generation via seeded Raman amplification and second harmonic generation
US12320702B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2022 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Jan 3, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/305
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A high brightness, wavelength-adjustable, deep-UV-C light source identifies, neutralizes, and validates the absence of one or more pathogens. An optical source using a Raman-based nonlinear optical amplification process converts low brightness continuous wave (CW) and Quasi-CW pump light into high brightness and high peak power optical UV-C radiation at a specific wavelength, pulse duration, repetition rate, and optical bandwidth for targeted pathogen identification, neutralization, and absence validation. A tunable Raman-based output operates at a wavelength between 400 nm and 460 nm, which is employed for Raman spectroscopic pathogen detection, and which is frequency doubled to the Deep-UV-C (DUV-C) spectral region of between 200 nm to 230 nm for fluorescence detection of potential pathogens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.