laser cooling

Ebook "The theory of coherent radiation by intense electron beams" will be mandatory reading for anyone working on the foundations of modern devices such as free electron lasers, plasma accelerators, synchroton sources and other modern sources of bright, coherent radiation with high spectral density.

267p coduathanh1122 27-03-2024 3 1   Download

Ebook Atoms in electromagnetic fields (Second edition): Part 2 includes contents: Atoms in high frequency fields or in the vacuum field simple physical pictures for radiative corrections, sisyphus cooling and subrecoil cooling, levy statistics and laser cooling,...

422p longtimenosee03 30-01-2024 3 2   Download

After their production and selection in the spectrometer, the ions of interest will be stopped in a buffer gas, neutralised, resonantly re-ionised, cooled and bunched. This will bring us in an adequate position to perform laser spectroscopy, mass measurements and decay spectroscopy of their ground and isomeric states. In this paper report on the ongoing commissioning of the detector set-up.

6p trinhthamhodang1218 14-03-2021 13 1   Download

The study aimed at investigating the microstructure and mechanical properties of NeodymiumDoped Yttrium Aluminum Garnet (Nd:YAG) laser welded high strength low alloy (HSLA) SA516 grade 70 boiler steel. The weld joint for a 4 mm thick plate was successfully produced using minimum laser power of 2 kW by employing a single pass without any weld preheat treatment. The micrographs revealed the presence of martensite phase in the weld fusion zone which could be due to faster cooling rate of the laser weldment.

10p kequaidan1 16-11-2019 15 0   Download

The microwaves fostered the chemical reactions via homogeneous and fast heating processes; the sonic radiations from an ultrasonicator created ultra-fast cooling rates at high power or just played a role of mechanical waves at low power; laser provided energy nanoparticles from bulk plates; elevated temperature and pressure produced good environments for unique reactions. All those preparation methods are simple and inexpensive but they could produce nanoparticles with interesting properties.

6p queencongchua3 09-09-2019 16 0   Download

(BQ) Part 1 of the document Catheter ablation of cardiac arrhythmias presents the following contents: Biophysics of radiofrequency lesion formation, guiding lesion formation during radiofrequency energy catheter ablation, irrigated and cooled tip radiofrequency catheter ablation, catheter microwave, laser and ultrasound - biophysics and applications,...

331p thangnamvoiva4 01-07-2016 33 2   Download

The laser has a range of pulse widths from 5 to 100 milliseconds, which is longer than the thermal relaxation time of the epidermis and comparable to that of the follicle. This pulse width range can effectively damage the follicle. However, the epidermis also contains some melanin and must be protected. A sapphire window (ChillTip) with high thermal conductivity is put in direct contact with the skin. It cools the epidermis before, during, and after each laser pulse. Because of index matching, it also reduces internal reflection of back-scattered light.

13p giamdocamnhac 06-04-2013 42 5   Download

Often practitioners of testing, accelerated testing, reliability testing, computer modeling and other validation tools focus on the science and math of the tool: what is innovative and cutting edge (which means “cool and fun to work on”), instead of the reason for using the tools. In this sense, testing and computer modeling engineers are a lot like kids—if you give a kid a hammer, everything will need pounding; give an engineer some neat new test method, math algorithm, or computer tool and every project will need it....

253p nguyenthai_thinh 14-03-2013 46 8   Download

An Introduction to Microelectromechanical Systems Engineering The Sandbox: Materials for M E M S devices are made of n-type and p-type bismuth telluride elements, and are used to cool high-performance microprocessors, laser diodes, and infrared sensors. Peltier devices have proven difficult to implement as micromachined thin film structures.

20p longmontran 14-01-2010 81 13   Download