They state that “Alternative methods including electrocauterization and CO2 [carbon dioxide] laser, via vaporization improve hemostasis but result in scarring and poor cosmesis.” There is no citation for this statement, so I assume it represents the authors’ opinions. Although I am a big proponent of 4.0-MHz radiowave surgery, I also use the CO2 laser to treat rhinophyma (frequently concomitant...

It was found that the electron density scale length of Sn plasma irradiated with a long duration CO2 laser pulse is much shorter than that predicted by the classical isothermal model. The experimentally observed small dominant region of in-band (2% bandwidth) 13.5-nm extreme ultraviolet (EUV) emission coincides with this constrained hydrodynamic behavior. The lower hydrodynamic efficiency may c...

Efficient laser systems are essential for the realization of high volume manufacturing in extreme ultraviolet lithography (EUVL). Solid-state Nd:YAG lasers usually have lower efficiency and source suppliers are alternatively investigating the use of high power CO2 laser systems. However, CO2 laser-produced plasmas (LPP) have specific characteristics and features that should be taken into accoun...

We report the identification and characterization of eight new FIR laser lines from methanol (CH3OH) in the range 48.4 to 453.7 µm pumped by sequence and hot bands of a cw CO2 laser. Frequency measurements for most of the new FIR laser lines and from previously reported ones were obtained in the range 0.6-6.8 THz with a one-sigma reproducibility of two parts in 10(7). We propose an assignment o...

Many reasons exist for companies to use quasicontinuous wave (QCW) fi ber lasers, including the fact that a fi ber laser combines the drilling and welding advantages of a pulsed Nd:YAG laser with the cutting capabilities of a CO2 laser. This combination of processing performance is not possible with the older technology, so in the past many companies owned both CO2 and Nd:YAG lasers to handle a...

Background Despite the wide application of lasers and radiofrequency (RF) surgery in dermatology, it is difficult to find studies showing the extent of damage dependent on cell death. Objective We evaluated histopathologic changes following in vivo thermal damage generated by CO2 laser, 1,444 nm long-pulsed neodymium:yttrium-aluminum-garnet (LP Nd:YAG) laser and RF emitting electrosurgical un...

BACKGROUND Tooth restoration immediately after bleaching is challenging due to the potential problems in achieving adequate bond strength. OBJECTIVE The aim of this study was to evaluate the effect of surface treatment with ER:YAG, ND:YAG, CO2 lasers and 10% sodium ascorbate solution on immediate microtensile bond strength of composite resin to recently bleached enamel. MATERIALS & METHODS ...

A recent advancement in the treatment of burn scars has been the use of the carbon dioxide (CO2) laser to perform fractional photothermolysis. In this analysis, we describe our results and patient-reported outcomes with the use of fractional CO2 laser for the treatment of burn-related scarring. We performed a retrospective study of all patients who underwent CO2 laser procedures for treatment o...

Shanghai Laser Electron Gamma Source, a γ-ray beam line of 10MeV order was proposed recently. The beam line is expected to generate γ-ray with maximum energy of 22MeV by backward Compton scattering between CO2 laser and electron in the 3.5GeV storage ring of future Shanghai Synchrotron Radiation Facility. The flux of non-collimated γ-ray can be 10 ∼ 10 s if a commercial CO2 laser of 100W order ...