Ultrafast laser techniques have opened up a tremendous research opportunity in studying the interaction of short pulses of light with matter. With discovering of the picosecond photoconducting hertzian dipoles and high-brightness THz beams characterized with an ultrafast detector, we have seen more and more applications of ultrafast light in noninvasive imaging. Standard methods, when applied t...

Since a very early stage of discotic liquid crystal research, triphenylene derivatives are known to be useful materials for the study of discotic liquid crystals. Recently, their importance as photoconducting materials was recognized [1]. Blue phases had only been observed in binary mixtures [2, 3]. It took over ten years to experimentally verify [4] J. Prost’s prediction of ferroelectricity in...

We report the novel photoresponse of nanodevices made from azafullerene (C(59)N)-encapsulated single-walled carbon nanotubes (C(59)N@SWNTs), so called peapods. The photoconducting properties of a C(59)N@SWNT are measured over a temperature range of 10 to 300 K under a field-effect transistor configuration. It is found that the photosensitivity of C(59)N@SWNTs depends very sensitively on the tem...

original article background and objectives: one type of electromagnetic fields, based on frequency range, is extremely low frequency (elf) fields. there are lots of reports about measuring elf- magnetic field (mf) in substations, power plants, cities, near high voltage power lines and etc. this study aimed to compare the difference between measurement of three-axis and single-axis probe mf mete...

original article   one type of electromagnetic fields, based on frequency range, is extremely low frequency (elf) fields. there are lots of reports about measuring elf-magnetic field (mf) in substations, power plants, cities and etc. this study aimed to compare the difference between measurement of three-axis and single-axis probe mf meters. elf-mf was measured by tes-1394 mf tester (three-axis...

The self-assembly of umbrella-shaped mesogens is explored with subphthalocyanine cores and oligo(thienyl) arms different lengths in the light their application as light-harvesting photoconducting materials. While shortest arm derivatives self-assemble a conventional columnar phase single mesogen repeating unit, more extended generate dimers that pile up into liquid crystalline columns. In contr...

The first spectra of helium, neon, argon, krypton, and xenon, excited by discharges in Geissler tubes, operated by direct connection to a transformer, have been explored in the infrared (12000 to 19000 A). A high-resolution, automatically recording, infrared spectrometer, employing a 15000-lines-per-inch grating and lead-sulfide photoconducting detector, was used as the dispersing instrument. A...