Details, Fiction and เลเซอร์
Details, Fiction and เลเซอร์
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Diffuse reflection of the laser beam from the matte area makes a speckle sample with attention-grabbing Homes.
การประยุกต์ใช้เลเซอร์เซมิคอนดักเตอร์ในสาขาเทคโนโลยีต่างๆ
การขยายขอบเขตการใช้งาน: การแพทย์ อุตสาหกรรม และความบันเทิง
กำจัดขนด้วยเลเซอร์ ได้ผลดีสุด เร็วสุด อยู่นานสุด กำจัดข ...
เครื่องขึ้นรูปกระดาษทิชชูรูปพระจันทร์เสี้ยว
นอกจากนี้ ภาคอุตสาหกรรมยังได้นำเทคโนโลยีนี้มาใช้ในกระบวนการผลิตอย่างรวดเร็ว การตัดและเชื่อมที่แม่นยำ.
They are named hybrid silicon lasers. Recent developments have also proven the usage of monolithically built-in nanowire lasers immediately on silicon for optical interconnects, paving just how for chip-degree apps.[82] These heterostructure nanowire lasers able to optical interconnects in silicon can also be able to emitting pairs of phase-locked picosecond pulses using a repetition frequency nearly 200 GHz, enabling for on-chip optical sign processing.[63] One more style is usually a Raman laser, which can take benefit of Raman scattering to produce a laser from materials like silicon.
Particularly large powers in ultrashort pulses may be obtained with Yb:YAG. Holmium-doped YAG crystals emit at 2097 nm and sort an effective laser functioning at infrared wavelengths strongly absorbed by h2o-bearing tissues. The Ho-YAG is normally operated inside a pulsed mode and handed by way of optical fiber surgical equipment to resurface joints, take away rot from teeth, vaporize cancers, and pulverize kidney and gall stones.
A laser contains a gain medium, a system to energize it, and one thing to provide optical responses.[27] The obtain medium is a material with Houses that allow it to amplify gentle by way of stimulated emission. Gentle of a specific wavelength that passes through the achieve medium is amplified (energy boosts).
Semiconductor quantum dot lasers use quantum dots because the Energetic laser medium. These lasers show product performance that's closer to gas lasers and stay away from many of the down sides of classic semiconductor laser media. Advancements in modulation bandwidth, lasing threshold, relative intensity sound, linewidth improvement aspect and temperature insensitivity have all been observed.
Charles H. Townes In 1953, Charles H. Townes and graduate pupils James P. Gordon and Herbert J. Zeiger developed the primary microwave amplifier, a device working on comparable principles to the laser, but amplifying microwave radiation rather than infrared or obvious radiation. Townes's maser was incapable of continual output.[forty four] Meanwhile, inside the Soviet Union, Nikolay Basov and Aleksandr Prokhorov had been independently working on the quantum oscillator and solved the condition of ongoing-output techniques by using much more than two Electricity stages.
ส่วนนี้จะแนะนำเทคนิคการมาร์กและการเลือกเลเซอร์ตามชนิดของวัสดุ คุณจะสามารถเลือกเลเซอร์ให้เหมาะกับการมาร์กผลิตภัณฑ์ของคุณได้อย่างแน่นอน
The resources chosen for lasers are the ones that have metastable states, which continue to be excited for a comparatively long time. In laser physics, these kinds of a material is termed an Lively laser medium. Coupled with an Electrical power พิโค่เลเซอร์ supply that proceeds to "pump" Vitality into the fabric, it can be done to own sufficient atoms or molecules within an fired up point out for a chain reaction to establish.
In other instances, the application demands the production of pulses getting as big an Power as you possibly can. Because the pulse Power is equal to the average energy divided from the repetition price, this goal can sometimes be satisfied by decreasing the speed of pulses to ensure additional Strength could be developed up between pulses.