Not known Facts About Laser Crystal
Not known Facts About Laser Crystal
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为了使激光器有效运作，需要有效管理运行过程中产生的热量。具有良好热导率的激光晶体可以更有效地散热，防止热透镜效应或断裂。
激光晶体（laser crystal），可将外界提供的能量通过光学谐振腔转化为在空间和时间上相干的具有高度平行性和单色性激光的晶体材料。是晶体激光器的工作物质。
The host medium influences strongly the wavelength, bandwidth and transition cross-sections of pump and laser transitions in addition to the higher-state lifetime.
激光晶体由发光中心和基质晶体两部分组成。大部分激光晶体的发光中心由激活离子构成，激活离子部分取代基质晶体中的阳离子形成掺杂型激光晶体。激活离子成为基质晶体组分的一部分时，则构成自激活激光晶体。
活性离子在激光晶体内发生的能量跃迁对激光操作至关重要。大多数激光操作都是通过四能级系统原理进行的，确保连续操作并防止浪费的非辐射衰变。
亚稳态寿命也起着重要作用。较长的寿命允许更多的储能和实现粒子数反转的更高潜力，这对激光动作至关重要。
The host crystal is way more than simply a way to repair the laser-Energetic ions at selected positions in space. Numerous properties of your host substance are essential:
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材料 激光晶体 晶体生长 光学性能 稀土离子 过渡族离子 materials laser crystal crystal expansion optical functionality exceptional earth ions changeover group ions
In 2017, we formulated the whole world’s biggest Ti∶sapphire crystal (Φ235 mm), which supported the 10 PW laser output of Shanghai Superintense Ultrafast Laser Facility. The event of Yb and Tm doped GdScO3 laser crystals with extremely wide emission spectra drives the development of laser diode pumped ultrafast strong-point out lasers. With the increase in pulse Strength, peak electricity, and repetition level of sound-condition lasers, laser crystals will establish to larger dimensions, higher crystal high quality, and controllable vital overall performance.
With that concept, one would not require a further saturable absorber crystal, to ensure 1 may perhaps make additional compact Q-switched laser setups with lessen inner parasitic losses. However, undesired side effects may additionally happen, which include obtaining undesired valence states in the included ions or Electrical power transfers.
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