International Journal of Infrared and Millimeter Waves
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* Dữ liệu chỉ mang tính chất tham khảo
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Analysis of coaxial waveguide partially filled with chiral media
International Journal of Infrared and Millimeter Waves - Tập 18 Số 12 - Trang 2411-2435 - 1997
Observation of a strong inverse temperature dependence for the opacity of atmospheric water vapor in the MM continuum near 280 GHz
International Journal of Infrared and Millimeter Waves - - 1990
Calculation of Radiation from a Helically Cut Waveguide for a Gyrotron Mode Converter in the Quasi-Optical Approximation
International Journal of Infrared and Millimeter Waves - Tập 30 - Trang 8-25 - 2008
We present results of calculations of the radiation from a helically cut waveguide launcher, a so-called Vlasov launcher, which is commonly used either internal or external to a gyrotron for purposes of mode conversion. A gyrotron internal mode converter consists of such a launcher that radiates the waveguide mode as a nearly Gaussian beam in free space followed by a set of mirrors to focus and di...... hiện toàn bộ
Nghiên cứu về các tính chất quang học hồng ngoại xa của Rexolite™ Dịch bởi AI
International Journal of Infrared and Millimeter Waves - Tập 11 - Trang 1299-1302 - 1990
Các tính chất quang học hồng ngoại xa của Rexolite™ 1422 đã được xác định tại Quỹ Nghiên cứu University of Lowell bằng cách sử dụng phổ Fourier. Các phép đo truyền phổ đã được thực hiện trên một mẫu vật liệu dày 0.0236″ trong vùng bước sóng siêu nhỏ từ 10 cm−1 đến 360 cm−1. Sử dụng lý thuyết phản xạ nhiều lần cho sự truyền qua một etalon, chỉ số khúc xạ phức tạp phụ thuộc vào tần số của Rexolite™ ...... hiện toàn bộ
#Rexolite #quang học hồng ngoại xa #chỉ số khúc xạ #phổ Fourier
Omnidirectional Single-negative Gap and in Fibonacci Sequences Composed of Single-negative Materials
International Journal of Infrared and Millimeter Waves - Tập 28 - Trang 671-676 - 2007
The band structures of Fibonacci sequence composed of single-negative materials are studied with a transfer matrix method. A new type of omnidirectional single-negative gaps is found in the Fibonacci sequence. In contrast to the Bragg gaps, such an omnidirectional single-negative gap is insensitive to the incident angles and polarization, and is invariant upon the change of the ratio of the thickn...... hiện toàn bộ
Center frequency formulation of the blackbody radiation spectrum
International Journal of Infrared and Millimeter Waves - Tập 10 - Trang 1377-1386 - 1989
The blackbody radiation spectrum is described in terms of a resonance curve that is composed of an excitation function, x5, and a damping function, e−x, where x=hν/kT. The energy radiated per unit area per second is expressed as E(ν, T)dν=Kνx5e−xdν. This mathematically simple and physically transparent formulation reproduces the features of the blackbody radiation curve and contains the valid temp...... hiện toàn bộ
Tunable Chirped Fiber Grating Based Variable Time-Delay Network for Phased-Array Antenna Beamforming
International Journal of Infrared and Millimeter Waves - Tập 24 - Trang 593-601 - 2003
In this paper, we present a photonics continuous beamforming system for optically controlled phased-array antenna based on a tunable fiber ring laser source and a novel variable true-time delay network consisting of one single-mode fiber delay line and four tunable chirped grating delay lines. The chirp rate of each chirped grating is tuned by bending a uniform fiber Bragg grating (FBG) bonded at ...... hiện toàn bộ
Master-oscilltor-amplifier electroionization carbon monoxide laser system and propagation of its radiation through atmosphere
International Journal of Infrared and Millimeter Waves - Tập 8 - Trang 549-571 - 1987
Thus, we have created an EI carbon monoxide laser systems, operating by the scheme “master-oscillator-amplifier”. We have experimentally studied the amplification and absorption of IR (λ∼5−6 μm) by multilevel active medium of EI CO laser. Conditions of saturated amplification of EI CO laser radiation have been found. By using various methods we have performed the formation of the EI CO laser syste...... hiện toàn bộ
New Strong MM FIR Emissions in CH2=CF2 Pumped by a Pulsed CO2 Laser
International Journal of Infrared and Millimeter Waves - Tập 21 - Trang 1043-1048 - 2000
By pumping with a suitable pulsed CO2 laser we have produced several strong MM laser lines in 1,1 difluoroethene. All the emissions are easily identified because the emission spectroscopy is simplified in pulsed optical pumping.
Heterodyne spectroscopy for astrophysical applications using tunable laser sidebands at 10 microns
International Journal of Infrared and Millimeter Waves - Tập 5 - Trang 147-158 - 1984
A heterodyne system was assembled from a microwave tunable sideband laser, a blackbody source, a gas cell, a CdHgTe photomixer and a filterbank. A measurement of line profiles of CH3F is presented and compared with absorption measurements. System sensitivity is sufficient for high resolution measurement of fine structure lines from astronomical objects, though falling short by a factor of 12, when...... hiện toàn bộ
Tổng số: 2,741
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