'Linear propagation' presentation slideshows

Chapter 9 Real-time ultrasound instrumentation

Chapter 9 Real-time ultrasound instrumentation. Image acquisition. A mechanical sector has a single crystal with one pulser and one transmit/receive switch A system with 128 channels requires 128 pulsers , 128 T/R switches, and 128 crystals in the array and hence very complex structure

657 views • 49 slides

Pulse description --- a propagating pulse

OPTICS OF SHORT PULSES. with minimum of equations, maximum of analogies and hand waving. A Bandwidth limited pulse. No Fourier Transform involved. Pulse description --- a propagating pulse. Fourier transforms review. Slowly Varying Envelope Approximation. A Bandwidth limited pulse.

584 views • 37 slides

SHORT PULSES

SHORT PULSES. AS INTRODUCTION TO FOURIER TRANSFORMS. SPACE TIME ANALOGY:. What applies to pulses in time can be transposed to beams in space. In time: dispersion In space: diffraction. Complex representation of the electric field. A Bandwidth limited pulse. No Fourier Transform involved.

484 views • 37 slides

Filling Algorithms

Filling Algorithms. Pixelwise MRFs. Chaos Mosaics. Patch segments are pasted, overlapping, across the image. Then either: Ambiguities are removed by smoothing (Chaos Mosaics-MSR).

469 views • 30 slides

Nonlinear Optical Microscopy

Nonlinear Optical Microscopy. Non-linear?. Y. X. Nonlinear response. Actual response can be written as y = c 1 x+ c 3 x 3 (this is called a cubic distortion) Assuming the input is a periodic signal x = cos ( ? t) y=c 1 cos( ? t)+c 3 [cos ( ? t)] 3

719 views • 30 slides

Beam Propagation Method

538 views • 20 slides

Beam Propagation Method

439 views • 20 slides