The invention of the laser in 1960 has been a very important milestone for our presentday society. This remarkable new light source not only triggered a revolution in science and technology but also gave rise to a significant improvement of the quality of our daily life. An important type of laser is the so-called Raman laser, the lasing mechanism of which is based on Stimulated Stokes Raman Sc...

Terrestrial laser scanning broadens its application areas in civil engineering, and claims even more attention in engineering survey. The paper shows the results of a laboratory test of a laser scanner. The laboratory test involved complex 3D accuracy analysis, reflectivity investigation of different colors and materials used at construction sites and observation of reflection angles. Instead o...

Cavitation has great application potential in microvessel damage and targeted drug delivery. Concerning cavitation, droplet vaporization has been widely investigated in vitro and in vivo with plasmonic nanoparticles. Droplets with a liquid dodecafluoropentane (DDFP) core enclosed in an albumin shell have a stable and simple structure with good characteristics of laser absorbing; thus, DDFP drop...

BACKGROUND This study examined the effect of roughening of the root surface using an erbium-doped yttrium aluminum garnet (Er: YAG) laser on the binding strength of teeth undergoing root canal treatment. MATERIAL AND METHODS Ninety single-rooted teeth were used and assigned randomly to 9 groups (n=10 each). Root canals were prepared using the FlexMaster rotary system. An Er: YAG laser was appli...

PURPOSE To discuss intraoperative and postoperative femtosecond laser-assisted LASIK flap complications and their management. METHODS Review of published literature. RESULTS Flap creation is a critical step in LASIK. The femtosecond laser has improved the overall predictability and safety of the lamellar incision, but complications can still occur during or after flap creation. Although man...

The International Organization for Standardization (ISO), in collaboration with the academic community, has developed and published a comprehensive system of standards characterization optical components laser beams. Our study offers pedagogical introduction to theory application beam accordance ISO 13694:2018 11145:2018. characterizing parameters each standard are presented, defined mathematic...

Dimensional control based on 3D laser scanning techniques is widely used in practice. We describe the application of a hybrid 3D-2D laser scanning system to the characterization of slate slabs with structural defects that are difficult for the human eye to characterize objectively. Our study is based on automating the process using a 3D laser scanner and a 2D camera. Our results demonstrate tha...

This paper demonstrates, for the first time to our best knowledge, the application of a tunable external-cavity fiber Bragg grating diode laser in spectroscopic chemical sensing. A tunable fiber Bragg grating external-cavity semiconductor laser is demonstrated with over 10 nm of tuning range. A piezo-actuator was implemented to stretch the grating for rapid wavelength tuning of the laser. The a...