Nondiffracting beams are of interest for optical metrology applications because the size of the beam does not change as the beam propagates. However, accuracy can be increased if the diameter of the beam is smaller. One technique for accomplishing this is to use the dark axial intensity profile associated with a higher-order nondiffracting Bessel function beam. We generate these higher-order Be...

This paper presents a comparative analysis between two current control strategies, constant source power and generalized Fryze current, used in Active Power Filter (APF) applications having three different modulation methods. The Hysteresis Band (HB) and first-order Delta-Sigma Modulation (DSM) as well as the second-order DSM is applied. The power section of the active power filter is viewed as...

We demonstrate a method to independently and arbitrarily tailor the spatial profile of light of multiple wavelengths and we show possible applications to ultracold atoms experiments. A single spatial light modulator is programmed to create a pattern containing multiple spatially separated structures in the Fourier plane when illuminated with a single wavelength. When the modulator is illuminate...

Performance analyses are presented theoretically on OFDM-PON working in IQ modulationheterodyne detection scheme for downstream and in intensity modulation-homodyne detection scheme for upstream which include the characterization of non-linear distortion in IQ modulator, pilot light multiplexing for optical phase noise cancellation in ONU receiver, heterodyne detection with LO provided by shari...

Faraday rotators that employ the magneto-optic effect are ubiquitous across several optical device categories: including optical isolators, polarization controllers, and spatial light modulators. However, Faraday rotators are notoriously difficult to fabricate at small scales due to the high magnetic field strengths required to generate significant light polarization vector rotations. In this p...

The protein present in various vertebrate tissues as smooth muscle, adrenal medulla, brain and platelets, previously identified with troponin C, has been found [ 1,2] to be identical with modulator protein of cyclic nucleotide phosphodiesterase. This protein was also found in skeletal and cardiac muscles, i.e., in the tissues which contain troponin C. Most of modulator protein was present in th...

Light-operated drugs constitute a major target in drug discovery, since they may provide spatiotemporal resolution for the treatment of complex diseases (i.e. chronic pain). JF-NP-26 is an inactive photocaged derivative of the metabotropic glutamate type 5 (mGlu5) receptor negative allosteric modulator raseglurant. Violet light illumination of JF-NP-26 induces a photochemical reaction prompting...

A novel process to control light through the coupling modulation by surface acoustic wave (SAW) is presented in an optical micro resonator. An optical waveguide modulator of a racetrack resonator on silicon-on-insulator (SOI) technology is took as an example to explore the mechanism. A finite-difference time-domain (FDTD) is developed to simulate the acousto-optical (AO) modulator using the mec...

A high-speed compact silicon modulator based on the lateral capacitor configuration is experimentally demonstrated with low-power consumption and 3 dB modulation depth. The capacitor layout is introduced to scale down the total modulator capacitance to 30x10(-15) F, which effectively reduces the rf power consumption to 0.54 pJ/bit. Exploiting the slow group velocity of light in the slot photoni...

Modulator is an endogenous low-molecular-weight regulator of both glucocorticoid and mineralocorticoid receptors as well as protein kinase C. Structural analysis of modulator purified to apparent homogeneity suggests that it is a novel ether aminophosphoglyceride. In this report, we show that modulator inhibits cytosolic human glucocorticoid receptor (GR) complex activation as measured by DNA-c...