Book ReviewsJohn Broome, . Ethics Out of Economics.Cambridge: Cambridge University Press, 1999. Pp 267. $75.00 (cloth); $28.00 (paper).

Frequency response range of terahertz pulse coherent detection based on THz-induced time-resolved luminescence quenching

“…The luminescence intensity is directly proportional to the number of electrons in the Γ valley, which has been demonstrated in previous studies. [6,[11][12][13][14] To investigate the distributions of the electrons in the three valleys corresponding to different incident THz pulses, the Boltzmann equation is used to describe the motion of electrons in the THz field, which is studied by the ensemble Monte Carlo method [9,10,[15][16][17][18][19][20][21][22][23]…”

Ground-state energy eigenvalue calculation of the quantum mechanical well V(x)=\frac{1}{2}kx^{2}+\lambda {x^{4}} via analytical transfer matrix method

“…In order to solve the Schrödinger equation in each of the three regions in figure 2, the boundary conditions due to the continuity of the wavefunction and its first derivative are applied at the boundaries of the regions I, II and III. In the case that the energy is less than both V 1 and V 3 [8], the solution in region I, x < 0, is given as…”

Ambipolar lateral diffusion of photo-induced carriers in a moderate magnetic field

“…In the case of lateral diffusion it is helpful to replace the carrier concentration per unit volume with the concentration per unit area, or sheet carrier density [5] n ph2D , as follows: n ph2D = dn ph . Then, substituting conditions (8), (9) and n ph2D into equation (6), multiplying these equations by µ p and µ n and adding them we obtain the ambipolar lateral diffusion equation for electron gas in the magnetic field:…”

“…The theoretical approach to the problem of lateral diffusion is based on the classical driftdiffusion model for electron-hole plasma in semiconductors [7,8]. The in-plane motion of charge carriers in QWs can be considered classically because the electron energies within QWs consist of the confined-state energy arising from the spatial quantization in the direction normal to the interface and the free-electron energies in the directions parallel to the interface [9]. Previously, the analysis was carried out for the case without external fields [5,6].…”