Resonator-Free Chalcone Laser Device
Official patent title
High optical gain laser device
Arabic title: جهاز ليزر عالي الكسب البصري
Invention
Invention
Problem
Many laser gain media operate only in liquid or solid form, support only pulsed or continuous operation, or offer limited wavelength tunability.
Why it matters
A gain medium that supports multiple physical states and excitation modes could simplify visible-laser research and broaden experimental optical-system designs.
Approach
The device uses a chalcone-derivative gain medium in liquid or solid embodiments, a pump source, a medium container, and optics without an optical resonator around the gain medium. Excitation produces amplified spontaneous emission in pulsed or continuous-wave modes.
Who may benefit
Potential beneficiaries include laser-source developers, photonics laboratories, optical-instrument manufacturers, spectroscopy researchers, and specialty laser-dye producers.
Potential value
The publication combines chalcone chemistry, liquid and solid gain-medium embodiments, resonator-free amplified spontaneous emission, and operation across pulsed and continuous-wave excitation.
Background
Background
Laser systems use gain media selected for physical state, optical gain, wavelength range, and excitation mode. Common dyes such as rhodamine 6G and rhodamine B can operate in liquid continuous-wave systems but have a limited stated range and perform poorly in solid form. Other systems may provide near-infrared output or narrow tuning windows. Chalcone derivatives have conjugated structures and tunable photophysical properties, motivating a medium intended to operate below 570 nm in liquid or solid state and in pulsed or continuous-wave modes.
Technology overview
Technology overview
A pump source supplies actinic energy to a chalcone-derivative gain medium held in a container, while optics direct the resulting laser without an optical resonator around the medium. Liquid embodiments dissolve the compound in water, ethylene glycol, acetone, ethanol, or dimethylformamide combinations; a solid embodiment contains no solvent. The claims specify 0.1–8.0 mg/mL and 525–580 nm output, and the publication presents spectral and amplified-spontaneous-emission experiments.
Potential applications
Potential applications
- Experimental visible laser sources using chalcone-derived gain media.
- Pulsed and continuous-wave photonics research platforms.
- Amplified-spontaneous-emission studies in liquid and solid media.
- Tunable-source research for spectroscopy and optical instrumentation.
Evidence-supported advantages
Evidence-supported advantages
- The disclosure covers both liquid and solvent-free solid gain-media embodiments.
- Pulsed and continuous-wave excitation modes are described.
- The claimed optical architecture operates without a resonator around the gain medium.
- Visible output in the 525–580 nm range is specified.
- The abstract reports optical gain on the order of 3.2 cm−1.
Development stage
Development stage
Laboratory compound synthesis, spectral characterization, and an amplified-spontaneous-emission setup are described; product-level commercialization was not established.
Commercial opportunity
Commercial opportunity
The device may interest laser-dye, photonics, and optical-instrument partners. Product development should establish output power, beam quality, tuning reproducibility, photostability, thermal management, continuous-operation lifetime, compound and solvent safety, scalable synthesis, packaging, and performance against incumbent visible gain media. Cost benchmarks would also be needed.
Patent classifications
Patent classifications
WIPO IPC
- H01S3/20Devices using light amplification by stimulated emission of radiation [LASER] to amplify or generate light; stimulated-emission devices for non-optical electromagnetic radiation
- C09K11/02Materials for applications not otherwise provided for; applications of materials not otherwise provided for
CPC
- C09K11/025Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K11/06Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- H01S3/094Devices using light amplification by stimulated emission of radiation [LASER] to amplify or generate light; stimulated-emission devices for non-optical electromagnetic radiation
- H01S3/1611Devices using light amplification by stimulated emission of radiation [LASER] to amplify or generate light; stimulated-emission devices for non-optical electromagnetic radiation
- H01S3/1643Devices using light amplification by stimulated emission of radiation [LASER] to amplify or generate light; stimulated-emission devices for non-optical electromagnetic radiation
- H01S3/20Devices using light amplification by stimulated emission of radiation [LASER] to amplify or generate light; stimulated-emission devices for non-optical electromagnetic radiation
- C09K2211/1007Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K2211/1018Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- H01S2301/02Devices using light amplification by stimulated emission of radiation [LASER] to amplify or generate light; stimulated-emission devices for non-optical electromagnetic radiation
Inventors
Inventors
- First inventorKhalid Hassan Ibnouf Ahmed
- InventorOsamah Abdulrahman Aldaghri
- InventorHajo Idriss Mohammed Idriss
- InventorAmin Osman Elzupir Alamalhuda
Keywords
Keywords
- chalcone
- gain medium
- optical gain
- amplified spontaneous emission
- continuous-wave laser
- pulsed laser
- visible laser
- photonics
Patent document and drawings
Patent document and drawings
The patent publication is mapped to this record. Patent drawings remain within that publication; no separately cleared public media package has been supplied.