Results 251 to 260 of about 6,730,982 (293)

Surface-Emitting Perovskite Random Lasers for Speckle-Free Imaging

open access: yesACS Nano, 2019
Random lasers have been ideal illumination sources for speckle-free and high-speed imaging. Despite their successes, the real applications of random lasers are facing a long-standing challenge, i.e., the cumbersome size of the illuminating system. Herein,
Nan Zhang
exaly   +2 more sources

Hierarchical random surfaces

Physical Review Letters, 1987
Two-dimensional random surfaces are constructed by the mapping in d-dimensional space of a triangular network (of linear size L) with hierarchical bond structure. A relation between static properties of such surfaces and the resistance exponent, \ensuremath{\zeta}, of two-dimensional inhomogeneous structures allows us to show that free surfaces have an
MARITAN, AMOS, STELLA, ATTILIO
openaire   +2 more sources

Orientability of random surfaces

Physical Review D, 1990
The critical behavior of large-$N$ matrix models defined by means of integrals over Lie algebras is shown to be universal. All such models give rise to the same theory of orientable random surfaces. By matching to the perturbative expansion, matrix models over symplectic groups are found to exhibit critical behavior distinct from that of unitary ...
, Myers, , Periwal
openaire   +2 more sources

Matrix realization of random surfaces

Physical Review D, 1991
The large-N one-matrix model with a potential V(φ)=φ 2 /2+g 4 φ 4 /N+g 6 φ 6 /N 2 is carefully investigated using the orthogonal polynomial method. We present a numerical method to solve the recurrence relation and evaluate the recursion coefficients r k (k=1,2,3,...) of the orthogonal polynomials at large N.
, Sasaki, , Suzuki
openaire   +2 more sources

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