منابع مشابه
Monocapillary Optics Developments and Applications
Hollow glass tubes are in use at Cornell High Energy Synchrotron Source (CHESS) as X-ray optics in the 4 to 25 keV range to take large diameter, fairly parallel X-ray beams and compress them into smaller diameter, more divergent beams for various kinds of X-ray applications. The optics come in two forms: 1) multibounce condensing capillaries for making submicron diameter beams and 2) one-bounce...
متن کاملDevelopments in Relativistic Nonlinear Optics
We report recent results of experiments and simulations in the regime of peak laser intensities above 10 W/cm, including the following topics: (1) electron and proton acceleration to energies in excess of 10 MeV in well collimated beams; (2) use of laser chirp to control the growth of plasma waves and acceleration of electrons by the Raman instability; (3) all optical injection and acceleration...
متن کاملRecent Developments in Quantum Optics
he quantum theory of light predicts many interesting effects that may seem counterintuitive or even impossible from a classical point of view. Several effects of this kind have been investigated at the Applied Physics Laboratory, including a new kind of interferometry, the cancellation of dispersion between two distant media, and a new type of phase associated with the electromagnetic field. So...
متن کاملRecent developments in adaptive optics
The detail that astronomical telescopes can resolve is limited by the effects of turbulence in the Earth’s atmosphere. In fact, the resolving power of the largest telescopes in the world equals that obtained with 10-20cm amateur telescopes. The goal of adaptive optics (AO), originally described in the 1950s, is to measure and correct the wavefront perturbations in real time1, 2 using a bright r...
متن کاملRecent Developments in Fiber Optics Humidity Sensors
A wide range of applications such as health, human comfort, agriculture, food processing and storage, and electronic manufacturing, among others, require fast and accurate measurement of humidity. Sensors based on optical fibers present several advantages over electronic sensors and great research efforts have been made in recent years in this field. The present paper reports the current trends...
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ژورنال
عنوان ژورنال: Nature
سال: 1957
ISSN: 0028-0836,1476-4687
DOI: 10.1038/179024a0