5 Easy Facts About เลเซอร์ Described

5 Easy Facts About เลเซอร์ Described

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ทำความเข้าใจเลเซอร์โซลิดสเตตและฟังก์ชันการทำงาน

If the attain (amplification) from the medium is greater as opposed to resonator losses, then the strength of the recirculating gentle can increase exponentially. But Just about every stimulated emission celebration returns an atom from its excited point out to the ground condition, lessening the get of the medium. With expanding beam energy, The web get (gain minus loss) decreases to unity as well as acquire medium is claimed for being saturated. Within a continual wave (CW) laser, the harmony of pump electricity versus get saturation and cavity losses makes an equilibrium worth of the laser electricity inside the cavity; this equilibrium establishes the working place in the laser.

A telescope from the Really Substantial Telescope program making four orange laser information stars A laser is a device that emits light through a strategy of optical amplification dependant on the stimulated emission of electromagnetic radiation. The term laser originated as an acronym for light-weight amplification by stimulated emission of radiation.

ช่วยแก้ปัญหาหลุมสิว ให้หลุมสิวตื้นขึ้น

เครื่องซีเอ็นซี เครื่องตัดต้นไม้ด้วยเลเซอร์

เครื่องจักรสำหรับตัด การประยุกต์ใช้งานการมาร์ก การลอกผิวด้วยเลเซอร์

In a Q-switched laser, the populace inversion is permitted to Develop up by introducing decline inside the resonator which exceeds the attain in the medium; this can also be called a reduction of the quality factor or 'Q' on the cavity. Then, after the pump Strength stored while in the laser medium has approached the maximum possible degree, the launched decline mechanism (generally an electro- or acousto-optical ingredient) is fast eliminated (or that happens by พิโค่เลเซอร์ alone in a passive system), allowing lasing to begin which fast obtains the stored Electricity inside the attain medium. This brings about a short pulse incorporating that Vitality, and so a high peak power.

The cells have been then positioned in between two twenty-micrometer-extensive mirrors, which acted as the laser cavity. In the event the cell was illuminated with blue light, it emitted intensely directed environmentally friendly laser light.

A laser consists of a acquire medium, a system to energize it, and some thing to deliver optical feedback.[27] The acquire medium is a material with Attributes that allow it to amplify light By means of stimulated emission. Mild of a particular wavelength that passes throughout the achieve medium is amplified (power improves).

That provoked a twenty-8-yr legal struggle about the legal rights to various laser systems and apps. Gould won his first patent in 1977 for optically pumped laser amplifiers, still it was not till 1987 that he won his first important patent infringement claim.[fifty three] Quite a few facets of a Doing work laser had been patented by unique men and women: the question of just tips on how to assign credit score for inventing the laser continues to be unresolved by historians.[54]

เรียบเรียงโดย อาจารย์นายแพทย์จรัสพล รินทระ

เกิดอาการคันผิวในจุดที่ยิงเลเซอร์ได้หลังทำ

เครื่องตัดพลาสม่าโครงสำหรับตั้งสิ่งของ

หลักการทางทฤษฎี: อัลเบิร์ต ไอน์สไตน์ และการปล่อยรังสีกระตุ้น