Defining the unknowns of sonoluminescence

Cosmological Particle Creation and Dynamical Casimir Effect

“…It have been shown that a gradual accumulation of small changes in the quantum state of the field could result in a significant observable effect. A new application of the dynamical Casimir effect has recently appeared in connection with the suggestion by Schwinger [17] that the photon production associated with changes in the quantum electrodynamic vacuum state arising from a collapsing dielectric bubble could be relevant for sonoluminescence (the phenomenon of light emission by a sound-driven gas bubble in a fluid [18]). For the further developments and discussions this quantum-vacuum approach see [21,19,20,22,23] and references therein.…”

Response of bubbles to diagnostic ultrasound: a unifying theoretical approach

“…This leads to high velocities and extraordinarily high accelerations of the bubble wall, exceeding 10 9 g in the solutions of (6) for the highest P a of our study (even larger accelerations are known in other contexts of bubble dynamics, see [19]). These values ofṘ and especiallyR, which far exceed those expected for linear response, lead to very high active emission pressures (cf.…”

“…[12][13][14][15][16][17][18]); the following form has proved to be robust and close to experiment even in situations of massively nonlinear bubble behavior, as e.g. in sonoluminescence experiments [19]:…”

“…The linear analysis is naturally extended to absorption cross sections; the analytical formula for σ ν abs in the case of monochromatic driving is easily found via (14) and (17)- (19) to be…”

Collapsing bubble in metal for high energy density physics study

“…The idea of a collapsing bubble is related to the single bubble sonoluminescence (SBSL) experiments [16][17][18][19][20][21][22]. SBSL is a phenomenon of periodic light emission by an oscillating micron-sized gas bubble trapped in the pressure anti-node of a standing ultrasound wave with driving pressure of 1.2 to 1.4 atm in water (or other fluids).…”