I may obtain a titanium:sapphire oscillator. I need to build an amplifier that is cheap. I have no prior experience in femtosecond physics, though I deal with optics and in the past dealt with nanosecond sources.
You need expert person and man power, costly as well, depends how much energy do you need at the end, regen amplifier is suitable because at least it can give 2 to 3 mj at the end on the other hand, multipass generate less energy and you may need two stages.
It is all doable, you do not need a specialist. I would recommend a regen amplifier based on the 100 femtosecond pulse length and not explicitly looking for high energy. The major cost is the pump laser to the Ti:sapphire crystal in your amplifier. The other expensive components is the Faraday rotator and Q switch. I assume that you will need the pulse stretcher and pulse compressor will require gratings also even though sometimes this is not part of the amplifier. The cost is dependent on the price for the parts. My experience is price is always negotiable. Could look for a cheap old amplifier and refurbish to be cost effective.
Hello Matthew, could you possibly point me towards published work or white papers that could steer me in the right direction. The emphasis is of course on making a lab scale prototype that just does the job. Thanks.
Such fs pulses were generated in the 90s, and later on people move towards much shorter ones because of their applications, anyway, here are some links for such system, Hopefully, they could be helpful.
https://www.osapublishing.org/ol/abstract.cfm?URI=ol-16-13-1001
https://www.osapublishing.org/ol/viewmedia.cfm?uri=ol-22-10-712&seq=0
Thanks Mukhtar. Shorter purses are fast but poorer energy resolution for spectroscopy. furthermore, the subsequent optics may not have the high bandwidth required for transmitting these pulses unscathed. Hence it depends on whether you need time resolution or energy resolution. For my applications 100 fs seems optimum. Thanks for your pointers. I will have a look.
it is doible, the most expensive things are the pumplaser. If you could run with lamp-pumped lasers you should get cheap used ones e.g Quantronix. Then you need a pockels cell to build a Regenerative Amplifier. For stretching and compression you need some gratings and a curved mirror. And you need a Ti:Sa Crystal, it is may be also possible to get a used one? The rest is Opto-Mechanics.
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Optics