Related Experiment Video

Updated: Feb 6, 2026

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
11:42

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities

Published on: July 24, 2015

16.1K

Tunable absorption as multi-wavelength at infrared on graphene/hBN/Al grating structure

Qinghui Pan, Guohua Zhang, Ruming Pan

    Optics Express
    |August 17, 2018
    PubMed
    Summary

    This study demonstrates a novel graphene/hBN/Al grating structure that achieves high light absorption via coupled polaritons. This design shows promise for advanced optical detection and optoelectronic applications.

    More Related Videos

    Writing Bragg Gratings in Multicore Fibers08:48

    Writing Bragg Gratings in Multicore Fibers

    Published on: April 20, 2016

    8.7K
    Characterization of Biological Absorption Spectra Spanning the Visible to the Short-Wave Infrared07:38

    Characterization of Biological Absorption Spectra Spanning the Visible to the Short-Wave Infrared

    Published on: January 10, 2025

    3.2K

    Related Concept Videos

    The de Broglie Wavelength02:32

    The de Broglie Wavelength

    In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
    33.7K
    Drug Absorption: Factors Affecting GI Absorption01:19

    Drug Absorption: Factors Affecting GI Absorption

    The process of oral drug absorption can be influenced by several factors. Weakly acidic drugs tend to be absorbed more readily from the stomach due to their nonionized state. However, absorption may be less efficient in the upper intestine, where drugs are often ionized. Interestingly, despite the stomach's apparent advantage for drug absorption, its mucous layer can hinder diffusion. Its surface area is also smaller than the intestine's, which can further slow down the absorption rate.
    6.3K
    Absorption of Radiation01:05

    Absorption of Radiation

    The rate of heat transfer by emitted radiation is described by the Stefan-Boltzmann law of radiation:
    1.3K
    Protein Absorption01:12

    Protein Absorption

    Proteins in the gastrointestinal tract typically come from food, but they can also originate from disintegrated cells or secreted enzymes. In the stomach, the enzyme pepsin breaks down these proteins into polypeptides. The fragments then move into the duodenum as a semi-fluid mass called chyme. Pancreatic proteases, such as trypsin and chymotrypsin, and intestinal brush border enzymes like carboxypeptidases further dismantle the polypeptides into tripeptides, dipeptides, and free amino acids.
    1.0K
    Lipid Absorption01:24

    Lipid Absorption

    Dietary triglycerides from chyme in the duodenum are mixed with bile salts produced by the liver to emulsify fats. As a result, large droplets are broken down into smaller ones, increasing the surface area for enzymatic action. Once emulsified, pancreatic lipases hydrolyze the triglycerides into free fatty acids and monoglycerides.
    These breakdown products bind with bile salts and lecithin to form micelles, which quickly pass between microvilli to come in close contact with the apical...
    2.7K
    Carbohydrate Absorption01:25

    Carbohydrate Absorption

    Carbohydrates are essential macronutrients that serve as the body's primary energy source. Their digestion begins in the mouth, where salivary amylase partially breaks down complex carbohydrates such as starch into smaller oligosaccharides. This mechanical and enzymatic activity prepares carbohydrates for further processing in the gastrointestinal tract.
    After being swallowed, the partially digested carbohydrates mix with gastric secretions in the stomach. However, the acidic environment...
    4.1K