Topic
Ruby laser
About: Ruby laser is a research topic. Over the lifetime, 2474 publications have been published within this topic receiving 38933 citations. The topic is also known as: corundum laser & ruby rod.
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TL;DR: In this paper, the reproducible generation of steady-state ultrashort pulses with passive mode locking was achieved in a pulsed ruby laser, where the lasing was stabilized by a slow-response negative feedback established by an electrooptic switch.
Abstract: Reproducible generation of steady-state ultrashort pulses (of ~7.4 psec duration) was achieved for the first time in a pulsed ruby laser with passive mode locking. The lasing was stabilized by a slow-response negative feedback established by an electrooptic switch. An experimental study was made of the formation of steady-state ultrashort pulses from initial radiation fluctuations. The proposed method should be suitable for the generation of reproducible pulses of ~100 fsec duration in wide-band amplifying media.
18 citations
TL;DR: In the early 1970's, it became experimentally feasible to use high-powered infrared laser technology in chemical processes as mentioned in this paper, and the period since then has seen intense and systematic study of atomic and molecular processes.
Abstract: Proposals for controlling or inducing chemical reactions with laser light have been around almost as long as lasers themselves. Immediately after Theodore Maiman's invention of the ruby laser in 1960 and Ali Javan, William Bennett and Donald Herriott's invention of the helium–neon gas laser in 1961 suggestions for using this new type of light source in chemical processes followed. The proposals resulted essentially from adapting already well‐known principles of photochemistry. Yet almost no research employing lasers in chemistry was done for ten years. Not until tunable lasers and high‐powered infrared lasers arrived at the end of the 1960's and in the early 1970's did laser chemistry become experimentally feasible, and the period since then has seen intense and systematic study of atomic and molecular processes. Of particular interest are those selective processes applicable to laser isotope separation, such as the work on carbon isotopes carried out in the apparatus shown in figure 1 and discussed later...
18 citations
TL;DR: In this article, a small rotating prism switched ruby giant pulse laser is reported which, with the aid of a specially designed resonant reflector and moderate cooling, delivers all its available power (∼25 MW) in a spectral width of < 0.01 A.
Abstract: A small rotating prism switched ruby giant pulse laser is reported which, with the aid of a specially designed resonant reflector and moderate cooling, delivers all its available power (∼25 MW) in a spectral width of <0.01 A. It can be used as the oscillator of a high power amplifying system.
18 citations
TL;DR: In this article, the two-photon absorption (TPA) coefficient of various semiconductors is determined with a Q-switched Ruby-laser (h vL = 1.785 eV).
Abstract: With aQ-switched Ruby-laser (h vL=1.785 eV), the two-photon absorption (TPA) coefficient of various semiconductors is determined. The gap energy,Eg, of these substances is lying in the range ofh vL
18 citations
TL;DR: In this paper, the beam from a Q-switched ruby laser is focused on to the sample, and the ions produced are used to give time resolved spectra of the sample.
Abstract: An apparatus has been constructed that will give a complete elemental analysis of a solid sample in the size range 10−8 to 10−10 g. The beam from aQ-switched ruby laser is focused on to the sample, and the ions produced are used to give time resolved spectra. Analysis of several types of sample is described, illustrating the capabilities and limitations of the instrument.
18 citations