The development of a space-qualifiable 2-micron laser is beneficial to both the Exploration and Earth science technology goals. Recently, significant advancements in the laser development have been made under the Laser Risk Reduction Program. One Joule per pulse energy was achieved by a Master-Oscillator-Power-Amplifier (MOPA) system. To our knowledge, it is the highest recorded energy at this ...

This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at Los Alamos National Laboratory (LANL). The goal of this project is to develop a solid state laser that produces visible output wavelengths, including the commercially compelling blue wavelength. The basic architecture of the device consists of a single-mode optical fiber doped with Pr3+ and ...

Ultrafast dynamical processes in solids may be triggered, studied and even manipulated with help of ultrashort laser pulses. Also for materials processing there is an enormous potential of ultrashort laser pulses. Thus, femtosecond laser–solid interaction is of significant interest to the fields of both basic research and industrial applications. Here, I present results of theoretical considera...

During the last years it was shown that time-resolved digital holography (TRDH), combining the conventional offaxis digital holography and ultrashort probing laser pulses results in versatile tool suitable for ultra-fast phenomena studies. The temporal resolution of this method depends on the duration of the used ultrashort probing pulses and measurements could be performed in temporal range fr...

In recent years, great attention has been paid to high peak power all-solid-state pulsed blue-green lasers [1–4] for some applications such as spectroscopy, display, optical data storage, coherent telecommunications, remote sensing, medicine, etc. Such lasers are generally realized by intracavity or external cavity frequency doubling of cw laser-diode (LD)-pumped solid-state Q-switched Nd-doped...

In the process of intense laser–matter interactions, transition dipole moment is a basic physical quantity at core, which directly related to internal structure solid and dominates optical properties in laser field. Therefore, reconstruction between energy bands extremely important for clarifying ultrafast dynamics carriers strong ultrashort pulse. this review, we introduce recent works reconst...

Objective(s): Photo-thermal therapy (PTT) is a therapeutic method in which photon energy is converted into heat to induce hyperthermia in malignant tumor cells. In this method, energy conversion is performed by nanoparticles (NPs) to enhance induced heat efficacy. The low-cytotoxicity and high optical absorbance of NPs used in this technique are very important. In the present study, titanium di...

Over recent years, a wide variety of challenges aiming for electrical pumping of organic laser diodes have been addressed. However, organic laser diodes have difficulty gaining widespread application due to their high lasing thresholds under electrical pumping. A variety of organic semiconductors have been developed to reduce the lasing threshold, which include not only small molecular material...