منابع مشابه
Sophisticated Light Switches
If optical metrology systems reach their limits in terms of dynamic range or speed, the use of sophisticated light switches might be a way to bring more flexibility into the measurement process. Rather than just describing the action of turning on and off light, the term “switching” refers to more advanced adaptions of light such as spatially resolved intensity modulation, phase shifting, beam ...
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The demand for janitorial robots has gone up with the rising affluence and increasingly busy lifestyles of people [1], both in offices and personal homes. All too often people forget to switch off lights, close doors, throw away garbage and so on; this is where a janitorial robot would come in handy. This kind of robot must have the necessary characteristics of being able to autonomously naviga...
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The ability to influence key properties of molecular systems by using light holds much promise for the fields of materials science and life sciences. The cornerstone of such systems is molecules that are able to reversibly photoisomerize between two states, commonly referred to as photoswitches. One serious restriction to the development of functional photodynamic systems is the necessity to tr...
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Light is essential for normal plant growth and development not only as a source of energy but also as a stimulus that regulates numerous developmental and metabolic processes. The plant’s responses are varied and complex and dependent upon the quality and quantity of ambient light. The initial requirement for light is as a signal for germination in many plant species. After germination in compl...
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ژورنال
عنوان ژورنال: Science
سال: 2010
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.328.5986.1613-a