Laser cooling and trapping is the ability to cool atoms down to unprecedented kinetic temperatures, and to confine and support isolated atoms in “atom traps”. This unique new level of control of atomic motion allows researchers to study the behavior of atoms and quantum mechanical properties.
The temperature on the atomic scale depends on the rate of movement of the atoms. Cooling individual atoms usually boils down to preventing the atoms from moving. But how does one grab a single atom and stop it?
Some atomic cooling techniques are Doppler cooling, Sub–Doppler cooling, and atom evaporation in a Bose-Einstein condensate.
Atomic trapping and cooling are typically used in applications such as:
For laser cooling on atomic resonances (such as Doppler cooling), you need a precise wavelength to match a specific atomic/ion transition, making DFB fiber lasers ideal. You can get this from a laser with a linewidth narrower than the atomic transition.
Higher power lets you cool more atoms simultaneously. No other commercial system provides equally high power at key cooling and trapping wavelengths as the Koheras HARMONIK, and with pristine beam quality.
The BOOSTIK system has advantages that have made it a daily driver in hundreds of laboratories around the World:
High power
Excellent beam quality
Ultra-low phase noise
Easy to use and maintenance-free
The BOOSTIK HP laser and HARMONIK frequency converter module come in different wavelength ranges and power levels to suit the many different needs of atomic physics.
One of the key advantages of our DFB fiber laser technology is the freedom to choose the operating wavelength. Due to the excellent beam quality, frequency conversion can efficiently bring many important applications within atomic physics within reach of the HARMONIK system.
Frequency conversion examples are shown below.
The graph shows the VIS wavelength capabilities of the HARMONIK. All lasers are pumped by our low-noise fiber lasers in the NIR (not shown), allowing the lasers to be locked to frequency references at either their fundamental or converted wavelengths.
aeroGUIDE-POWER fiber delivery for high power narrow linewidth light
The aeroGUIDE-POWER is the gold standard of high power single-mode fiber delivery and offers the highest nonlinear threshold of any PM single-mode delivery system on the market.
The systems are equipped with high-power SMA-905 connectors with built-in mode strippers to remove uncoupled light. The aeroGUIDE-POWER is single-mode and can guide light with low loss anywhere in the 500 to 2000 nm range. The fiber is protected by an armored square lock steel cable that can handle daily use and even inter-lab routing through walls.
Barium Ions for Quantum Computation by M. R. Dietrich, A. Avril, R. Bowler, N. Kurz, J. S. Salacka, G. Shu, B. B. Blinov published in Atomic Physics, 2009.
Towards an 27Al+ based optical clock by Khabarova Ksenia, Zalivako Ilia, Semerikov Ilya, Borisenko Alexander, Kolachevsky Nikolay published by IEEE, 2018.
Time-scale Generation Methods Based on an Optical Clock by Artem Gribov, Denis Sutyrin, Oleg Berdasov, Sergey Antropov, Gleb Belotelov, Evgeniya Stelmashenko, Aleksei Kostin, Mikhail Gurov, Alexander Malimon, Daria Fedorova, Roman Balaev, Sergey Slyusarev published in IEEE Xplore, 2020.
Time-scale Generation Methods Based on an Optical Clock by Artem Gribov, Denis Sutyrin, Oleg Berdasov, Sergey Antropov, Gleb Belotelov, Evgeniya Stelmashenko, Aleksei Kostin, Mikhail Gurov, Alexander Malimon, Daria Fedorova, Roman Balaev, Sergey Slyusarev published by IEEE, 2020.
Trapping and cooling of Sr+ ions: strings and large clouds by S. Removille, R. Dubessy, B. Dubost, Q. Glorieux, T. Coudreau, S. Guibal, J-P Likforman, L. Guidoni published in Journal of Physics B: Atomic, Molecular and Optical Physics, 2009.
Dawson, Jay W., et al. “Multi-watt 589nm fiber laser source.” Lasers and Applications in Science and Engineering. International Society for Optics and Photonics, 2006.
