| Revista: | Revista mexicana de física |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000427074 |
| ISSN: | 0035-001X |
| Autores: | Morales Cruzado, B2 Sarmiento Gómez, E2 Camacho López, S3 Pérez Gutiérrez, F.G1 |
| Instituciones: | 1Universidad Autónoma de San Luís Potosí, Facultad de Ingeniería, San Luis Potosí. México 2Universidad Autónoma de San Luís Potosí, San Luis Potosí. México 3Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Baja California. México |
| Año: | 2017 |
| Periodo: | Ene-Feb |
| Volumen: | 63 |
| Número: | 1 |
| País: | México |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, teórico |
| Resumen en inglés | A short pulse transmitted by a turbid medium is both distorted in shape and shifted temporally as its passes through. If the incident pulse is short enough an analytical expression of the deformed pulse can be calculated using the diffusion approximation of the radiative transport equation (RTE), and the optical properties of the medium can be recovered from the transmitted pulse. In this work, the effect of a homogeneous turbid medium on the transmitted temporal profile of nanosecond laser pulses was studied both experimentally and numerically for samples with different optical properties and various laser pulse widths. The numerical results showed a dependence of the pulse distortion on the variables tested, finding that this dependence dramatically changes upon varying pulse width. This work contributes to the field by showing that the interaction between turbid media phantoms and nanosecond laser pulses can also be analyzed, as it is the case for ultrashort laser pulses, by using the diffusion approximation of the RTE in certain regimes. This finding is significant and useful for applications when a laser pulse must attain to certain duration and shape after propagation through a turbid medium or when at a certain time an intensity threshold is required |
| Disciplinas: | Física y astronomía |
| Palabras clave: | Física, Láser de nanosegundos, Propagación de ondas en medios aleatorios, Transferencia radiactiva |
| Keyword: | Physics, Nanosecond laser, Wave propagation in random media, Radiative transfer |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
