Author template for journal articles
... The effectiveness of resonant circuits associated with exact thermal measurements is proved by a number of research papers. In particular, in the patent US6534767 the sensitive element of resonant circuits plays the role as a capacitor or inductor. It is well known that the capacitance or inductance ...
... The effectiveness of resonant circuits associated with exact thermal measurements is proved by a number of research papers. In particular, in the patent US6534767 the sensitive element of resonant circuits plays the role as a capacitor or inductor. It is well known that the capacitance or inductance ...
Few-cycle terahertz generation and spectroscopy of nanostructures
... The radiation was generated by means of quantum beats in the quantum well. More efficient intracavity THz generation was obtained when the SQW structure and later InAs were subjected to a static magnetic field (Sarakura et al . 1998; Liu et al . 2000), but the maximum average THz power generated by the ...
... The radiation was generated by means of quantum beats in the quantum well. More efficient intracavity THz generation was obtained when the SQW structure and later InAs were subjected to a static magnetic field (Sarakura et al . 1998; Liu et al . 2000), but the maximum average THz power generated by the ...
Ab-initio Calculations of Photonic Structures
... phase-matching that does not depend exclusively on the intrinsic properties of naturally existing nonlinear optical materials, which could be particularly relevant in those systems in which the canonical phasematching condition can not be fulfilled. To compute accurately the nonlinear optical dynami ...
... phase-matching that does not depend exclusively on the intrinsic properties of naturally existing nonlinear optical materials, which could be particularly relevant in those systems in which the canonical phasematching condition can not be fulfilled. To compute accurately the nonlinear optical dynami ...
Properties of Radiation What`s this?
... • Flux (or flux density), F: rate at which radiation is incident on, or passes through, a flat surface (e.g., the ground, the top of a cloud layer, a level in the atmosphere…); Units: W m-2 • By definition, a broadband quantity integrated between wavelength limits (λ1 and λ2) • Spectral flux (or ...
... • Flux (or flux density), F: rate at which radiation is incident on, or passes through, a flat surface (e.g., the ground, the top of a cloud layer, a level in the atmosphere…); Units: W m-2 • By definition, a broadband quantity integrated between wavelength limits (λ1 and λ2) • Spectral flux (or ...
Waves and Radiation Pupil Booklet
... 2. describe the relative effect of ionisation, absorption and shielding. 3. list some sources of background radiation. 4. calculate absorbed dose and equivalent dose. 5. compare the equivalent dose due to a variety of natural and artificial sources. 6. describe some applications of nuclear radiation ...
... 2. describe the relative effect of ionisation, absorption and shielding. 3. list some sources of background radiation. 4. calculate absorbed dose and equivalent dose. 5. compare the equivalent dose due to a variety of natural and artificial sources. 6. describe some applications of nuclear radiation ...
Two-photon ablation with 1278nm laser radiation
... and this can be done by keeping single-photon absorption to a minimum. Hence, it is of great importance to select the wavelength of the laser with care, taking into account single and multi-photon cross sections plus the dispersion characteristics of the optical system. In multi-photon interactions, ...
... and this can be done by keeping single-photon absorption to a minimum. Hence, it is of great importance to select the wavelength of the laser with care, taking into account single and multi-photon cross sections plus the dispersion characteristics of the optical system. In multi-photon interactions, ...
Deliverable 9: Blueprints of ICT relevant demonstrators As pointed
... as thin-film optical isolators. In addition, we have proposed to use photonic metamaterials that can be used as tunable switches at THz frequencies, and finally we have proposed to use photonic metamaterials for electro-optic modulation. Chirality only exists in truly three-dimensional structures, i ...
... as thin-film optical isolators. In addition, we have proposed to use photonic metamaterials that can be used as tunable switches at THz frequencies, and finally we have proposed to use photonic metamaterials for electro-optic modulation. Chirality only exists in truly three-dimensional structures, i ...
Presentation
... components, exhibit hyperbolic-type dispersion in space of wave vectors. Such media are referred as hyperbolic metamaterials (HMMs). A distinctive feature of such media is a capability to support propagation of electromagnetic waves with huge wave vector components, or by other words, electromagneti ...
... components, exhibit hyperbolic-type dispersion in space of wave vectors. Such media are referred as hyperbolic metamaterials (HMMs). A distinctive feature of such media is a capability to support propagation of electromagnetic waves with huge wave vector components, or by other words, electromagneti ...
Get PDF - OSA Publishing
... a function of the distance away from the end of the wire. The values of d for which a reasonable signal can still be measured are considerably larger than those shown in Fig. 2(a). This is caused by the fact that the 6 mm diameter lens on the detector collects the radiation from a larger area and c ...
... a function of the distance away from the end of the wire. The values of d for which a reasonable signal can still be measured are considerably larger than those shown in Fig. 2(a). This is caused by the fact that the 6 mm diameter lens on the detector collects the radiation from a larger area and c ...
LASER - NDLR Dspace
... Most sources of the radiation emit through spontaneous transactions, and since these occur in a random fashion ordinary sources of visible radiation are incoherent. In comparison, in a laser the radiation density builds up such that induced transitions become completely dominant, and the emitted rad ...
... Most sources of the radiation emit through spontaneous transactions, and since these occur in a random fashion ordinary sources of visible radiation are incoherent. In comparison, in a laser the radiation density builds up such that induced transitions become completely dominant, and the emitted rad ...
Components of Optical Instruments, Cont…
... These lamps produce few sharp lines in the UV and visible (Vis). ...
... These lamps produce few sharp lines in the UV and visible (Vis). ...
Optical Sources and Detectors
... Developments in optics in the XX century have had a profound influence on science and technology. Examples include the optical lithography techniques used to make computer chips, high-resolution microscopes, infrared sensors and highly efficient lighting sources. The invention of laser has led to ma ...
... Developments in optics in the XX century have had a profound influence on science and technology. Examples include the optical lithography techniques used to make computer chips, high-resolution microscopes, infrared sensors and highly efficient lighting sources. The invention of laser has led to ma ...
Tyukhtin_RREPS13_presentation
... One of methods which we develop is based on the ray optical laws. This technique is traditional in optics and applied very widely for elaboration of different optical devices. It looks natural to use such an approach in theory of particle radiation. However, we must take into account that some of ge ...
... One of methods which we develop is based on the ray optical laws. This technique is traditional in optics and applied very widely for elaboration of different optical devices. It looks natural to use such an approach in theory of particle radiation. However, we must take into account that some of ge ...
Measurement of the THz emission from a femtosecond laser filament
... spectral range > 1 THz, we include in the calculations a corresponding correction based on measurements of the water absorption spectrum made by Xin et al. 9, considering 40 % humidity and a path of 25 cm for the THz. From the best fit of g(ν) we extract the percent of energy for each filter and the ...
... spectral range > 1 THz, we include in the calculations a corresponding correction based on measurements of the water absorption spectrum made by Xin et al. 9, considering 40 % humidity and a path of 25 cm for the THz. From the best fit of g(ν) we extract the percent of energy for each filter and the ...
Sub-mm Wave Imaging and Waveguiding
... opposing technological approaches which seek to bridge the THz gap. CW systems utilize a variety of technical schemes including diode-based frequency multipliers, backward wave oscillators, and free-electron lasers to either increase the frequency of an initial microwave signal, as fundamental oscil ...
... opposing technological approaches which seek to bridge the THz gap. CW systems utilize a variety of technical schemes including diode-based frequency multipliers, backward wave oscillators, and free-electron lasers to either increase the frequency of an initial microwave signal, as fundamental oscil ...
Document
... Sample rotation changes the fine spectral structure because of coupling change between the electromagnetic field of radiation and the dipole moment of the DNA oscillators. THz-BRIDGE Workshop 2002 ...
... Sample rotation changes the fine spectral structure because of coupling change between the electromagnetic field of radiation and the dipole moment of the DNA oscillators. THz-BRIDGE Workshop 2002 ...
A Novel Electromagnetic Field Detector for Extremely Low
... -------------------------------------------------------------ABSTRACT----------------------------------------------------------Electromagnetic fields (EMF) produce huge impact in any modern society. It is well known that a strong electromagnetic field can cause acute effects, such as burns. The mech ...
... -------------------------------------------------------------ABSTRACT----------------------------------------------------------Electromagnetic fields (EMF) produce huge impact in any modern society. It is well known that a strong electromagnetic field can cause acute effects, such as burns. The mech ...
Poster Session Program
... Polyethylene naphthalate (PEN) is a kind of crystalline engineering polymer that can be used in adverse environments such as those at high temperatures. Its rystallinity is an important factor controlling its material properties. Regarding this, the present work examines the possibility of using ter ...
... Polyethylene naphthalate (PEN) is a kind of crystalline engineering polymer that can be used in adverse environments such as those at high temperatures. Its rystallinity is an important factor controlling its material properties. Regarding this, the present work examines the possibility of using ter ...
Photoinduced handedness switching in terahertz chiral metamolecules ARTICLE
... chirality. Similar approaches of incorporating semiconductors into subwavelength resonators have been used to actively manipulate the electromagnetic resonances of metamaterials by photoexcitation or electric bias23–26. The chirality switching in the above terahertz metamaterials was experimentally ...
... chirality. Similar approaches of incorporating semiconductors into subwavelength resonators have been used to actively manipulate the electromagnetic resonances of metamaterials by photoexcitation or electric bias23–26. The chirality switching in the above terahertz metamaterials was experimentally ...
Fast Modulation of Terahertz Quantum Cascade
... speed has significantly increased from the 20 kHz of the first devices,14 to the 12.6 MHz achieved in a complex metamaterial graphene integrated modulator.15 In our approach, comparable modulation speeds were achieved but in a simpler configuration. In addition, the system has been tested also with a T ...
... speed has significantly increased from the 20 kHz of the first devices,14 to the 12.6 MHz achieved in a complex metamaterial graphene integrated modulator.15 In our approach, comparable modulation speeds were achieved but in a simpler configuration. In addition, the system has been tested also with a T ...
Terahertz radar cross section measurements
... such as RCS reduction and stealth. The necessity of operating on massive objects, such as full-size airplanes or ships, can make those measurements complicated, time consuming, and expensive. Also the size of the platforms makes it impractical to iterate the design and testing phases, allowing only ...
... such as RCS reduction and stealth. The necessity of operating on massive objects, such as full-size airplanes or ships, can make those measurements complicated, time consuming, and expensive. Also the size of the platforms makes it impractical to iterate the design and testing phases, allowing only ...
THz Materials
... photoconductive antennas for THz because of similar refractive index value in THz. More about general characteristics of sapphire and transmission spectrum within UV and visible range you can find the chapter ...
... photoconductive antennas for THz because of similar refractive index value in THz. More about general characteristics of sapphire and transmission spectrum within UV and visible range you can find the chapter ...
Negative photoconductivity due to coherent trapping of electrons in
... helium temperature by monitoring the magnetic field dependence of the photoconductive signal while sweeping the magnetic field at constant THz frequency radiation. Commonly, an optically pumped far-infrared laser is used as monochromatic, wavelength multi-line, source. Apart from this linear spectro ...
... helium temperature by monitoring the magnetic field dependence of the photoconductive signal while sweeping the magnetic field at constant THz frequency radiation. Commonly, an optically pumped far-infrared laser is used as monochromatic, wavelength multi-line, source. Apart from this linear spectro ...
An-Introduction-to-Spectrometric
... black-body radiation is characteristic of the temperature of the emitting surface rather than the material of which that surface is composed. Blackbody radiation is produced by the innumerable atomic and molecular oscillations excited in the condensed solid by the thermal energy. Note that the energ ...
... black-body radiation is characteristic of the temperature of the emitting surface rather than the material of which that surface is composed. Blackbody radiation is produced by the innumerable atomic and molecular oscillations excited in the condensed solid by the thermal energy. Note that the energ ...
Terahertz radiation
In physics, terahertz radiation – also known as submillimeter radiation, terahertz waves, tremendously high frequency, T-rays, T-waves, T-light, T-lux or THz – consists of electromagnetic waves within the ITU-designated band of frequencies from 0.3 to 3 terahertz (THz; 1 THz = 1012 Hz). Wavelengths of radiation in the terahertz band correspondingly range from 1 mm to 0.1 mm (or 100 μm). Because terahertz radiation begins at a wavelength of one millimeter and proceeds into shorter wavelengths, it is sometimes known as the submillimeter band, and its radiation as submillimeter waves, especially in astronomy.Terahertz radiation occupies a middle ground between microwaves and infrared light waves known as the terahertz gap, where technology for its generation and manipulation is in its infancy. It represents the region in the electromagnetic spectrum where the frequency of electromagnetic radiation becomes too high to be measured digitally via electronic counters, so must be measured by proxy using the properties of wavelength and energy. Similarly, the generation and modulation of coherent electromagnetic signals in this frequency range ceases to be possible by the conventional electronic devices used to generate radio waves and microwaves, requiring the development of new devices and techniques.