![Which of the following are the characteristics of Laser beams? (1) They are monochromatic (2) They are coherent (3) They have high degree of parallelism (4) They are not monochromatic Which of the following are the characteristics of Laser beams? (1) They are monochromatic (2) They are coherent (3) They have high degree of parallelism (4) They are not monochromatic](https://d10lpgp6xz60nq.cloudfront.net/ss/web/376824.jpg)
Which of the following are the characteristics of Laser beams? (1) They are monochromatic (2) They are coherent (3) They have high degree of parallelism (4) They are not monochromatic
![Metals | Free Full-Text | FIB-SEM Investigation of Laser-Induced Periodic Surface Structures and Conical Surface Microstructures on D16T (AA2024-T4) Alloy Metals | Free Full-Text | FIB-SEM Investigation of Laser-Induced Periodic Surface Structures and Conical Surface Microstructures on D16T (AA2024-T4) Alloy](https://pub.mdpi-res.com/metals/metals-10-00144/article_deploy/html/images/metals-10-00144-g001.png?1581037858)
Metals | Free Full-Text | FIB-SEM Investigation of Laser-Induced Periodic Surface Structures and Conical Surface Microstructures on D16T (AA2024-T4) Alloy
![Input-output characteristics of the laser diode used in this study. The... | Download Scientific Diagram Input-output characteristics of the laser diode used in this study. The... | Download Scientific Diagram](https://www.researchgate.net/publication/318793460/figure/fig2/AS:522229374435328@1501520593243/Input-output-characteristics-of-the-laser-diode-used-in-this-study-The-inset-shows-the.png)