Germanium Window
Germanium Window - Related Videos
09:45
Epitaxial Growth of Perovskite Strontium Titanate on Germanium via Atomic Layer Deposition
0 Views •
Cited by 3 •
2016
This work details the procedures for the growth and characterization of crystalline SrTiO3 directly on germanium substrates by atomic layer deposition. The procedure illustrates the ability of an all-chemical growth method to integrate oxides monolithically onto semiconductors for metal-oxide semiconductor devices.
12:38
Soft Lithographic Functionalization and Patterning Oxide-free Silicon and Germanium
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Cited by 3 •
2011
Here we describe a simple method for patterning oxide-free silicon and germanium with reactive organic monolayers and demonstrate functionalization of the patterned substrates with small molecules and proteins. The approach completely protects surfaces from chemical oxidation, provides precise control over feature morphology, and provides ready access to chemically discriminated patterns.
08:15
Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups
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Cited by 1 •
2012
We present the high-temperature synthesis of intermetallic precursors K4Ge9, their dissolution in ethylenediamine to form Ge94- deltahedral Zintl ions, and the reaction of the clusters with alkynes to form organo-Zintl ions. The latter are characterized by electrospray mass spectrometry in solutions and by single-crystal X-ray diffraction in the solid state.
03:15
Calvarial Window Generation in Mouse Model: A Surgical Procedure to Create Window in the Top Part of the Mouse Skull
0 Views •
2023
In this video, we describe the surgical procedure to create a calvarial window for accessing the brain of a mouse model.
15:01
Windowing Chicken Eggs for Developmental Studies
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Cited by 37 •
2007
The ease of accessibility of the embryo has allowed for experiments to map cell fates using several approaches, including chick quail chimeras and focal dye labeling. In this article we demonstrate one egg preparation method that has been optimized for long survival times.
FAQs
A high refractive index increases the amount of infrared radiation that can reflect at the polished surfaces rather than pass through the window. This surface reflection can reduce optical throughput even when germanium itself transmits the relevant wavelengths. Applying a suitable surface coating helps limit these reflections, allowing more diagnostic radiation to reach the sample or detector.
Surface coatings can reduce reflection at the germanium-air interface and improve the transmission of infrared radiation through the component. Their role is especially important when measurements depend on detecting relatively small spectral or imaging signals. By increasing throughput, coatings can help the optical system use more of the radiation available within germanium’s transmission range.
Germanium transmits selected infrared wavelengths while blocking most visible light, so it is suited to optical systems designed to measure infrared responses rather than ordinary visual images. This wavelength selectivity helps isolate radiation associated with molecular information. Consequently, the component can support measurements focused on chemical bonds and composition without relying on visible-light transmission.
The window is placed within the optical arrangement so it can separate a biological sample or an instrument component from the remaining optical path while transmitting the relevant infrared radiation. Its polished surface and any applied coating influence how efficiently light passes through. This arrangement allows spectroscopy or imaging to proceed without strongly absorbing diagnostic wavelengths.
In Fourier-transform infrared measurements, a Germanium Window can provide an infrared-transmitting interface between the sample and other instrument components. The resulting spectrum can contain information related to molecular composition and chemical bonds. In biological research, that information supports examination of cells, tissues, or biomolecules and can help reveal chemically associated structural changes.
For infrared imaging, the window helps maintain an optical path in which diagnostic infrared radiation can reach or leave the biological material with limited absorption by the component. The recorded image can then reflect differences associated with molecular composition or tissue structure. This makes the window useful when researchers examine spatial patterns rather than only a spectral measurement.
Measurements supported by these windows can be used to assess molecular composition, chemical bonds, and structural changes in cells, tissues, or biomolecules. Spectroscopy emphasizes wavelength-dependent information, whereas infrared imaging adds spatial context. Together, these outcomes connect optical signals with biological organization and chemical state, supporting analysis of how materials differ or change.