introduction: the purpose of this case report is to analyze the results of vestibuleplasty around an over-denture based on dental implants to determine the evidence on the effectiveness of laser-assisted surgery and soft tissue management in implant dentistry. case report: the patient in this case report was a 57 year- old male who was completely edentulous, with a mandibular over denture based...

Pulses of 100-fsec duration are obtained by synchronous pumping of a colliding-pulse ring dye laser with a mode-locked Ar(+)-ion laser. Stable operation of the synchronously pumped colliding-pulse mode-locked laser over hours was obtained by a suitable choice of the distance between the gain and the absorber in combination with an appropriate pump-pulse sequence.

Cr-Tm-YAG, Cr-Tm-Ho-YAG, and Er-YAG lasers at 2.01 pm, 2.1 2pm, and 2.94 pm, resp., are compared regarding single-shot and high-repetition rate efficiency. The 2 pm lasers are intrinsically limited at higher operation temperatures, the Er-laser only shows thermal lensing. Th~n (3 mm) Tmand Ho-laser rods allow high repetition rates (30 Hz) and with increasing rod diameters pulse energies up to 1...

A new model that describes the influence of a laser intracavity frequency shifter is proposed. Laser line broadening that is due to the presence of the frequency shift is derived. The theoretical model is validated by experimental results. Multiwavelength operation of this laser is explained.

The author is presenting output performances obtained from Nd-based laser materials that were in-band pumped directly into the F3/2 emitting level. Continuous-wave (cw) laser operation at 1.06 μm with slope efficiency of 0.79 in Nd:YAG and 0.80 in Nd:GdVO4 and Nd:YVO4 was realized using an end-pumping configuration and a tunable Ti:Sapphire laser around 0.88 μm as source of excitation. These sl...

The first Raman laser with intra-cavity electronic switching is demonstrated. Digital control of intra-cavity gain is attained by using a diode gain cavity. In contrast to traditional Raman lasers, the Raman laser reported here is made from pure silicon and can be directly modulated to transmit data. Room temperature operation with 2.5W peak laser output power is demonstrated.

Objective: The objective of this study is to explore the influence of combined femtosecond laser and phacoemulsification on postoperative curative effect and safety on cataract patients. Method: One hundred forty-five cataract patients (148 eyes) needing operation were selected and grouped by difference in operation method: control group, 72 patients (74 eyes) were treated with traditional phac...

Fiber-optic attraction of urinary stones during laser lithotripsy may be exploited to manipulate stone fragments inside the urinary tract without mechanical grasping tools, saving the urologist time and space in the ureteroscope working channel. We compare thulium fiber laser (TFL) high pulse rate/low pulse energy operation to conventional holmium:YAG low pulse rate/high pulse energy operation ...

We demonstrate the first 1.7 μm bismuth-doped fiber laser generating ultrashort pulses via passive mode-locking. Pulse operation has been achieved for both anomalous and normal dispersion of the laser cavity owing to broadband characteristics of carbon nanotube saturable absorber. The laser delivered 1.65 ps pulses in net anomalous dispersion regime. In normal dispersion regime, the laser deliv...