نتایج جستجو برای: infrared source
تعداد نتایج: 517719 فیلتر نتایج به سال:
An all-fiber, tunable, short-wave infrared transmitter is demonstrated using efficient four-wave mixing in conventional L and O bands. To realize this source a highly-nonlinear fiber, exhibiting low bend loss over the short-wave infrared spectral band, is employed because of its advantageous properties as a nonlinear mixing medium. The transmitter was subsequently exploited to probe and detect ...
The spectra of the quiescent counterparts to the Soft Gamma-Ray Repeaters SGR 1900+14 and SGR 1806–20 peak in the infrared. Their infrared spectra appear to contain several components: the photospheric emission from star(s) dominates at shorter wavelengths, a bright point source dominates at 25 μm, while an extended source dominates at 60 μm. However, we show here that these counterparts were n...
Design and Simulation of an Infrared Jammer Source for an Infrared Seeker M. R. Mosavi; M. Asadpour; H. A. Ameri Department of Electrical and Computer Engineering, Behshahr University of Science and Technology ABSTRACT Infrared jammer source is intended for active protection of helicopters against guided missiles with IR homing devices. The majority of such known stations are intended for suppr...
امروزه کیفیت توان هم از طرف شبکه و هم از طرف مصرف کنندگان توجه ویژه ای را به خود جلب کرده و این موضوع به خاطر استفاده بسیار گسترده بارهای حساس و تجهیزات الکترونیکی است که ممکن است تحت اختلالاتی نظیر فلیکر ولتاژ، هارمونیک، کمبود و بیشبود ولتاژ و قطعی های موقت قرار بگیرند. این اختلالات موجب عملکرد نامناسب بارهای حساس، گرمای بیش از حد تجهیزات، خرابی موتورهای الکتریکی، اندازه گیری های نادرست و عملک...
A facility for subnanosecond time-resolved ~pump-probe! infrared spectroscopy has been developed at the National Synchrotron Light Source of Brookhaven National Laboratory. A mode-locked Ti:sapphire laser produces 2 ps duration, tunable near-infrared pump pulses synchronized to probe pulses from a synchrotron storage ring. The facility is unique on account of the broadband infrared from the syn...
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