In the physical acoustics lab, we remotely sense photoacoustic and ultrasonic wavefields with optical techniques. Most of these techniques result in point measurements of the wavefield, which tell us about the physical properties of rocks, fruit, ice, timber and the human body. Point detection of the wavefield is useful, but certain applications require instant recording of the wavefield at more than a single point. A new postdoctoral researcher position opened up to develop line- or areal detection of these wavefields. Methods will include line detection with Gas Coupled Laser Detection and areal wavefield detection with Speckle Pattern Interferometry.