Photography method problems

One of the major problems in the photography of a volume of air containing droplets is the lack of an adequate depth of focus. Only those particles contained within a shallow depth present true images. It is difficult to make measurements when the majority of droplets are out of focus. La Mer and Lee (SF) have developed a method which places all the drops within a very shallow band. An aerosol stream is forced to pass through an extremely fine slot, so that stream thicknesses of only 0.02 mm. can be formed. 

The development of the Kodachrome method and other methods of color photography has been a triumph of organic chemistry. It was the organic chemists who solved the problem of the synthesis of stable... 

It should be pointed out that for the ELD method in partieular, there exists a similarity to the photographie proeess, where initially formed Ag nanopartieles (the latent pieture ) are used for the eatalytie amplifieation in the development step. In our case, micro-contact printing (pCP) was used for the localised deposition of the seeds. This well-established, soft-lithographic method was originally developed by Whitesides and coworkers for the printing of al-kanethiols [20-22] but was later extended inter alia to nanopartieles [23]. Such printed nanopartieles have already been used to seed the deposition of other metals, e.g. copper or silver [23, 24], but the quality of the metal layers obtained in this way was not satisfactory for application in micro-electronic devices. In addition, the problem of hetero-metallic contacts arose, as will be discussed later. 

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