Facts About KGW Crystal Revealed
Facts About KGW Crystal Revealed
Blog Article
]. A result of the quick storage time, Ti:sapphire is usually pumped by frequency-doubled Nd:YAG or Nd:glass strong-state lasers, which ends up in a bulky and complicated program with high Value. As opposed with standard CPA laser systems, the OPCPA program can get hold of a shorter pulse length and a greater peak ability.
We use cookies to differentiate you from other end users also to provide you with an even better knowledge on our websites. Shut this information to just accept cookies or Learn the way to control your cookie settings.
We utilised a transmission grating (TG) being a dispersive ingredient in our stretcher and compressor. A compact configuration was adopted, exactly where the stretcher as well as the compressor shared one grating much like that in Ref.
In its elemental sort, potassium provides a silvery grey metallic visual appeal, but its compounds (like potassium hydroxide) tend to be more usually used in industrial and chemical applications.
The monoclinic crystal buildings ends in a normal birefringence, helping to prevent thermally induced polarization rotation and depolarization reduction.
The comparison with glasses is acceptable Considering that the large attain bandwidth makes it possible for e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
Being a Portion of GDPR plan, we use cookies making sure that we provde the very best knowledge on our Internet site.
Finally, we investigated the prolonged-time period performances of SC generation in crystal samples underneath exceptional pumping situations at increased laser repetition prices. In doing so, the crystal samples weren't translated and retained in the stationary posture with respect towards the pump beam through the entire measurement. The illustrations illustrating sturdy extended-expression performances of SC generation in KGW and YAG crystals at significant laser repetition premiums may be uncovered in other places. Extra precisely, stable performance of KGW crystal at two MHz pulse repetition amount below pretty equivalent pump beam focusing geometry was claimed recently30, Whilst YAG crystal shown stable performance for several hrs at two hundred kHz pulse repetition charge In spite of very limited focusing on the pump beam (NA=0.085)32. The extended-term general performance tests in LSO, LYSO and YSO unveiled gradual narrowing from the SC spectra on the prolonged-wavelength side that occurred just after a specific exposure time and could be attributed to the optical degradation of these materials. For instance, in LSO, the onset of spectral narrowing was noticed following (sim twenty) minutes at a laser repetition amount of 10 kHz, although in a laser repetition charge of 20 kHz, secure SC era general performance was observed just for roughly 2 min.
Thermal outcomes are drastically scaled-down in KGW. This along with the high harm threshold make the crystal a fantastic candidate for electrical power scaling. Comparing Ba(NO3)2 and KGW for Raman application Ba(NO3)2 are more effective in the event of ns pulses and KGW �?in case of ps pulses.
The brink energy for SC generation (hbox E _ textrm th ) was defined as being the pump pulse Vitality, exactly where the blue-shifted spectral broadening quickly settles to a specific Slash-off wavelength that remains Nearly frequent even with even further enhance of your pump pulse energy. The optimum Power (hbox E _textrm opt ), was defined given that the pump pulse Electricity, which produces the most important red-shifted spectral broadening prior to the onset of periodic modulation from the SC spectrum as a result of more info filament refocusing.
EKSMA Optics takes advantage of cookies to supply you with the finest procuring knowledge. For those who keep on to utilize our expert services, We are going to believe which you comply with using these kinds of cookies.
-switched output spectrum of your regenerative amplifier supports a sub-160 fs pulse amplification. Therefore, pulses with energies of as many as two mJ and length down below two hundred fs is usually obtained utilizing higher-good quality dichroic mirrors and also a broader-spectrum laser seed. This regenerative amplifier performs as a fantastic pre-amplifier for even more laser amplification.
The scattered photons have a special wavelength and Electrical power as opposed to incident photons, which produces a Raman spectrum.
Both energies are marked via the dashed strains and their values are labeled during the plots. The similar characteristics were also noticed in KGW and YAG crystals, whose spectral broadening dynamics are proven for just a comparison in Fig. four.