The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We measured different sub-fractions of an asphaltene sample with a THz-TDS system. The results demonstrate good correlation between the terahertz absorption coefficient and the polarity of different sub-fractions.
We report recent research progress on the strong coupling between an ensemble of quantum emitters (QEs) or chiral molecules and plasmon in the nanoparticle cluster, including strong interaction between chiral molecules and orbital angular momentum of photon, multi-qubit entanglement for two-level QEs, resonant energy transfer and so on.
We present a simple cross-calibration procedure for measuring THz power with room-temperature pyroelectric detectors. When efficiently coupled, large-area, metal-film-coated lithium tantalate pyroelectric detectors are perfectly capable of detecting microwatt average power levels or less from THz sources, pulsed or cw. Here we focus on a brass flared-horn coupling technique that increases the pyroelectric...
This paper presents a third-order digital tunable bandpass filter based on digitally tunable capacitor loaded open ring resonator. Magnetic dominated mixed coupling is utilized to make the coupling coefficient meet the requirement of stable bandwidth response. Electric source-load coupling is designed to generate a transmission zero for improving the frequency selectivity. This filter is designed,...
In this paper, a novel analogue tunable bandpass filter with constant absolute bandwidth is presented. The filter is designed based on full wavelength microstrip open ring resonators loaded with varactors. Magnetic dominated mixed coupling is designed to make the coupling coefficient meet the requirement of constant absolute bandwidth response. The filter is designed, fabricated and measured. The...
It is well-known that heavy Rare Earth (RE) metal of Tb, with stronger coupling of orbital and spin moments and anisotropic magnetism, can influence the magnetic properties of Fe based soft magnetism, especially tailor magnetization dynamic damping and in turn influence the magnetization switching time [1], [2], [3]. In our previous work, the dynamic damping of Fe-based films with dilute RE(Tb, Nd)...
The work presented in this paper focuses on the system identification of a 2-DOF flexure-based mechanism, designed for micro/nano scale positioning and manipulation. In the presented compliant mechanism, the cross axis coupling ratio is below 1% indicating excellent decoupling performance. The system identification procedure, experimental design, data collection, data analysis, and validation of the...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.