Search

Laser-induced backside dry etching (LIBDE) is a promising technique for micro- and nanomachining of transparent materials. Although several experiments have already proved the suitability and effectiveness of the technique, there are several open questions concerning the etching mechanism and the concomitant processes. In this paper time-resolved light transmission investigations of etching process of fused silica are presented. 125 nm thick silver coating was irradiated through the carrying 1 mm thick fused silica plate by single pulses of a nanosecond KrF excimer laser. The applied fluences were 0.38, 0.71 and 1 J/cm 2 . During the etching process the irradiated spots were illuminated by an electronically delayed nitrogen laser pumped dye laser. The delay between the pump and probe pulses was varied in the range of 0 ns and 20 μs. It was found that the transmitted probe beam intensity strongly depends on the applied delays and fluences. Scanning electron microscopy and energy dispersive X-ray spectrometry of the etched surface showed the existence of silver droplets and fragments on the illuminated surfaces and silver atoms built into the treated surface layer influencing the transmission behavior of the studied samples.

The Baby-Mother-(Father) program started in 2007, after a preparatory phase in a collaboration with the Zentrum Fur Soziale Psychiatrie - Mutter & Kind Behandlung, Heppenheim, Germany. In Hungary, this is the first dedicated program for a babymother unit, were initiated by National Institute of Child Health (OGYEI), and Saint John Hospital Psychiatric and Psychiatric Rehabilitation Department in Budapest. Objective Baby-mother unit introduction into the local and the Hungarian health service. The aim of the program is to apply a collaborative therapeutic and rehabilitation model utilizing the multidisciplinary team work in the treatment of the pre-, peri- and post-natal period of mothers suffering mental disorders as well as to facilitate the early interactions and attachment with the baby. Since 2007, 82 mothers, 1 father entered into the program. 54 mothers were participated as inpatient, 29 were treated only as outpatient. 24.9% of the cases were diagnosed (ICD 10 – F20–F29) schizophrenia or spectrum disorders, 27,6% were in the major affective disorders, including bipolar, (F 31, 14.5%). 38,6% were diagnosed in the anxiety disorders spectrum. 23% entered in the prenatal period (pregnancy), while 76,3% entered post-natal. Therapeutic methods used Case-management, individual, group and family interventions (psychotherapy), pharmacotherapy, case conferences, individual and staff supervision, video-feedback, mother-child consultation. Results New treatment model introduction in Hungary, which may reduce the risk of the separation of the baby, enhances the mother recovery, as well as the utilization of the family's and the supportive network resources. Further research is needed to prove the higher efficacy.