The optical resonator is sometimes referred to as an "optical cavity", but this can be a misnomer: lasers use open up resonators as opposed to the literal cavity that would be employed at microwave frequencies inside a maser. ฟิลเลอร์ยกหน้า คืออะไร แก้ปัญหาหน้าหย่อนคล้อยได้จริงไหม? The population inversion is managed during the dopant. These https://johnk307xac8.bloggerchest.com/profile