Within the last year
Within the past 3 years
1 - 10 of 28 articles
We describe a GaAs electro‐optic channel waveguide which can be used as a high‐speed modulator with a potential bandwidth of 1 GHz. A narrow Schottky‐barrier strip permits beam trapping to be controlled by an applied voltage. Ninety‐five percent amplitude modulation has been obtained with...
A single beam of accelerated deuterium ions, D + 2 , of 108 keV, injected into a highly inhomogeneous magnetic field, decreasing quadratically with the radial distance from the center, was made to collide head‐on with i t s e l f . The trajectory of the ’’self‐colliding beam’’ is a...
The achievement of fully oriented epitaxial films of polymeric sulfur nitride is reported together with initial results on their optical and transport properties. Oriented epitaxial thin films of (SN) x have been grown on various substrates including Mylar, Teflon, and polyethylene.
A fluorescence spectrum of the vibronic sideband of Cr 3 + in LaAlO 3 has been obtained by means of pulsed tunable dye laser excitation on resonance with the zero‐phonon line. This method of excitation offers improved resolution, while attenuating competing spectral features arising from...
A Schottky diode originally made for use as a detector and a mixer in the millimeter‐waveglength region has been used as a room‐temperature fast detector in the submillimeter‐wavelength region. A voltage responsivity of 2 V/W and an NEP of 1×10 −7 W/Hz 1/2 at 337 μm were obtained by...
Submillimeter laser pulses exceeding 1‐MW power have been generated superradiantly in CH 3 F gas pumped by 200 MW of 9.55‐μ CO 2 TEA laser radiation. When far‐infrared output was restricted to operation on the 496 line alone, 0.5 MW was achieved within a bandwidth of 100 MHz.
Holographic microinterferometry is used to study plasmas produced by high‐intensity subnanosecond pulses from a Nd laser. The probing pulse is frequency tripled to 3547 Å in order to reduce refractive errors due to steep density gradients and to reduce spatial resolution requirements. Measured...
Diffusivity measurements have been made at 1000, 1100, and 1200 °C on LiNbO 3 ‐LiTaO 3 single‐crystal thin films prepared by melt‐phase and liquid‐phase epitaxy. The interdiffusion coefficient is determined to be D ∼5×10 −7 exp−40(kcal/mol)/ R T cm 2 sec −1 . In addition, we...
It is shown that the electron temperature of a multidipole plasma can be significantly increased by injecting electrons with energy less than the ionization potential of the neutral gas. Electron temperatures determined from Langmuir probes and ion‐acoustic waves show close agreement.
A compact Ar−N 2 excitation transfer laser pumped by a coaxial electron gun is demonstrated. This laser emits a 40‐ns, 300‐kW pulse at a nominal repetition rate of 1 HZ. With 45 J of energy delivered to the electron gun, 12 mJ of laser output at 3577 Å is obtained. A 2.8% laser efficiency...
Read and print from thousands of top scholarly journals.
Sign up with Facebook
Sign up with Google
Already have an account? Log in
Save this article to read later. You can see your Read Later on your DeepDyve homepage.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Sign Up Log In
To subscribe to email alerts, please log in first, or sign up for a DeepDyve account if you don’t already have one.
To get new article updates from a journal on your personalized homepage, please log in first, or sign up for a DeepDyve account if you don’t already have one.