Heterodox transients in time-domain induced polarization

Para-Hydrogen Induced Polarization at Time Domain NMR Spectrometer

Nuclear Magnetic Resonance (NMR) is a widely used spectroscopic method in a broad range of disciplines. Unfortunately NMR suffers from a low intrinsic sensitivity. The low sensitivity of NMR can be successfully improved by application of hyperpolarization technique called Para-Hydrogen Induced Polarization (PHIP) which was discovered in 1986 [1-3]. Till now, a substantial progress in the method...

polarization-insensitive time-domain OFT

We have demonstrated the generation of a 320 Gb/s NyquistOTDM signal by rectangular filtering on an RZ-OTDM signal with the filter bandwidth (320 GHz) equal to the baud rate (320 Gbaud) and the reception of such a Nyquist-OTDM signal using polarization-insensitive time-domain optical Fourier transformation (TD-OFT) followed by passive filtering. After the time-to-frequency mapping in the TD-OFT...

Measuring time-domain spectral induced polarization in the on-time: decreasing acquisition time and increasing signal-to-noise ratio

Time-locked perceptual fading induced by visual transients.

After prolonged fixation, a stationary object placed in the peripheral visual field fades and disappears from our visual awareness, especially at low luminance contrast (the Troxler effect). Here, we report that similar fading can be triggered by visual transients, such as additional visual stimuli flashed near the object, apparent motion, or a brief removal of the object itself (blinking). The...

Time-resolved Microwave Induced Optical Nuclear Polarization

It was shown that a higher nuclear polarization can be achieved by transferring the high population differences of the electronic sublevels of photoexcited triplet states in molecular crystals to the nuclear spin system /I/. This transfer occurs in the level anticrossing area of an external magnetic field BQ /2/ or with simultaneous irradiation of light and microwave, a method which was termed ...