Laser Application Systems 2
3. Communications and Information Technology
- Fiber Optic Communication: Lasers serve as the core light source for high-speed internet transmission.
- Data Storage: Reading and writing CDs/DVDs/Blu-ray discs.
- Display Technology: Laser projectors, AR/VR devices.
4. Scientific Research and Measurement
- Spectroscopy: Detecting material composition (e.g., environmental monitoring, chemical analysis).
- Interferometry: High-precision distance measurement (e.g., LIGO gravitational wave detection).
- Cold Atom Experiments: Laser cooling and trapping of atoms (Nobel Prize-winning application).
- Imaging: Handheld Photoacoustic Imaging.
- Up-conversion Luminescence: e.g., 808 nm, 980 nm, 1532 nm laser source.
- Laser Induced Fluorescence (LIF): Widely used in biology, chemistry, environmental sciences, agriculture, and other applications.
- Lasers for Digital PCR: DNA Sequencing.
- Particle Image Velocimetry (PIV): Widely used in particle flow studies, wind tunnel flow measurements, etc.
- Nitrogen-vacancy Center Detection
- Synthetic Biology
- Optical Diffraction Tomography
- Optoelectronic Synaptic
5. Military and Defense
- Laser Weapons: Anti-missile and anti-drone systems (e.g., U.S. "Aegis" system).
- Target Designation: Laser-guided missiles and bombs.
- Reconnaissance and Communication: LiDAR, secure laser communication.
6. Energy and Environmental Protection
- Nuclear Fusion: Inertial confinement fusion (e.g., U.S. National Ignition Facility, NIF).
- Solar Cells: Laser scribing and thin-film processing.
- Environmental Monitoring: Laser remote sensing of atmospheric pollutants.
7. Consumer Electronics and Entertainment
- Displays and Lighting: Laser TVs, laser show (stage lighting).(e.g., RG, RGB laser)
- Holography: 3D imaging technology. Widely used in holographic microscopy, holography security, holographic interferometry, etc.
- Gaming: Laser tag, interactive projections.
- AR-HUD: Laser projection for larger field of view (e.g. Augmented reality navigation for Mercedes-Benz EQS).
8. Other Emerging Fields
- Quantum Technology: Quantum communication (e.g., quantum key distribution), quantum computing.
- Agriculture: Laser-assisted breeding, pest control.
- Art Restoration: Cleaning artifacts (e.g., removing oxidized layers from paintings).
Applications Driven by Laser Characteristics
- High Directionality: Ranging, guidance systems.
- High Monochromaticity: Precision spectroscopy (Raman Spectroscopy: Used for Jewelry appraisal, forensic appraisal, and others materials.
- Ultra-Short Pulses: Study of ultrafast processes (femtochemistry).
- High Intensity: Industrial cutting, nuclear fusion.