Electromagnetic properties depend on the composition of materials, i.e. either angstrom scales of molecules or, for metamaterials, subwavelength periodic structures. Each material behaves differently in accordance with the frequency of an incoming electromagnetic wave due to the frequency dispersion or the resonance of the periodic structures. This indicates that if the frequency is fixed, the ...

K S A H A , * K N R AO , * V N S E H G A L , t S G A D I , t v K J A I N§ & A K C H A K R A BA R T Y� * Vallabhbhai Patel Chest Institute, University of Delhi, Delhi1 10 007; t Maulana A zad Medical College and associa ted LNJPN and GB Pant Hospitals , New Delhi; :j: Hindusthan Copper Complex Mines Hospital, Mosabani 832 104; § Department of Dermatology, Medical College Hospital, Roh tak 124 00...

Charge transport processes at interfaces which are governed by complex interfacial electronic structure play a crucial role in catalytic reactions, energy storage, photovoltaics, and many biological processes. Here, the first soft X-ray second harmonic generation (SXR-SHG) spectrum of buried interface (boron/Parylene-N) is reported. SXR-SHG shows distinct spectral features that not observed abs...

Harmonic lasing provides an opportunity to extend the photon energy range of existing and planned x-ray free electron laser (FEL) user facilities. Contrary nonlinear harmonic generation, can generate a much more intense, stable, narrow-band FEL beam. Another interesting application is self-seeding that allows improve longitudinal coherence spectral power self-amplified spontaneous emission FEL....

Extending single attosecond pulse technology from currently sub-200 eV to the so called 'water window' spectral range may enable for the first time the unique investigation of ultrafast electronic processes within the core states of bio-molecules as proteins or other organic materials. Aperiodic multilayer mirrors serve as key components to shape these attosecond pulses with a high degree of fr...

abstract angstrom-prescott equation is one of the most commonly used methods for the estimation of global solar radiation (rs) based on sunshine hours. the critical step in the application of this method's is the calibration of its coefficients for each region. although the coefficients of the equation have been calibrated in different parts of the world, the effect of different time scales has...

Nonspecific molecular adsorption like airborne contamination occurs on most surfaces including those of 2D materials and alters their properties. While the surface is studied using a plethora techniques, effect confined system such as nanochannels, nanopores leading to clogging still lacking. We report systematic investigation hydrocarbon in angstrom slit channels varied heights. Hexane chosen ...

The current advances in fluorescence microscopy, coupled with the development of new fluorescent probes, make fluorescence resonance energy transfer (FRET) a powerful technique for studying molecular interactions inside living cells with improved spatial (angstrom) and temporal (nanosecond) resolution, distance range, and sensitivity and a broader range of biological applications.