The Single Best Strategy To Use For เลเซอร์
The Single Best Strategy To Use For เลเซอร์
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Good-condition lasers or laser amplifiers where the light is guided due to total internal reflection in a single mode optical fiber are in its place known as fiber lasers. Guiding of sunshine permits particularly extended gain regions, furnishing good cooling problems; fibers Possess a substantial floor place to quantity ratio which enables efficient cooling.
สามารถย่อขนาดได้เนื่องจากประสิทธิภาพในการทำความเย็นและกลไกทำความเย็นที่เรียบง่าย
The populace inversion is preserved inside the dopant. These materials are pumped optically employing a shorter wavelength when compared to the lasing wavelength, generally from a flash tube or another laser. The utilization of the phrase "reliable-state" in laser physics is narrower than in regular use. Semiconductor lasers (laser diodes) are generally not called reliable-point out lasers.
A further technique of accomplishing pulsed laser Procedure should be to pump the laser product with a source that is itself pulsed, possibly via Digital charging in the case of flash lamps, or A further laser which is already pulsed. Pulsed pumping was historically employed with dye lasers wherever the inverted inhabitants lifetime of the dye molecule was so short that a superior-energy, rapidly pump was required.
Fairly frequently, the fiber laser is made for a double-clad fiber. This type of fiber consists of a fiber core, an internal cladding, and รักษาหลุมสิว an outer cladding. The index on the 3 concentric levels is preferred so which the fiber Main functions as one-manner fiber for that laser emission when the outer cladding functions as a really multimode Main to the pump laser.
สิ่งที่ใช้พิจารณาในการเลือกเลเซอร์มาร์กเกอร์ [ราคา]
This glowing plasma could be the gain medium with the laser. The laser produces a small, intensive location around the display screen to the proper. The center on the location appears white because the impression is overexposed there.
อะตอมที่อยู่ในสถานะถูกกระตุ้น สถานะอิเล็กตรอน
The YAL-1, a modified Boeing 747 having a laser weapon on board. It absolutely was canceled in December 2011 and scrapped in September 2014. Lasers may be used as incapacitating non-lethal weapons.[citation essential] They can result in short-term or long-lasting eyesight loss when directed for the eyes. Even lasers with a power output of less than just one watt could cause immediate and lasting vision reduction under selected situations, earning them perhaps non-lethal but incapacitating weapons.
For light-weight, this means that any provided changeover will only take in 1 unique wavelength of light. Photons with the proper wavelength may cause an electron to leap with the lower to the higher Electricity level. The photon is consumed in this method.
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