Wavelength of Light - Nanotechnology

What is the Wavelength of Light?

The wavelength of light refers to the distance between successive peaks of a wave, typically measured in nanometers (nm) for visible light. It ranges from about 400 nm (violet) to 700 nm (red). This range falls under the electromagnetic spectrum, which includes not only visible light but also ultraviolet and infrared radiation.

Why is Wavelength Important in Nanotechnology?

In nanotechnology, the wavelength of light is crucial because the scale at which nanoparticles operate is often similar to the wavelength of visible light. This allows for unique interactions between light and matter, leading to applications in optical devices, imaging, and sensing.

How Does Wavelength Affect Optical Properties of Nanomaterials?

The interaction between light and nanomaterials can result in phenomena such as plasmon resonance, where conduction electrons on the surface of nanoparticles oscillate in response to light. This is highly dependent on the wavelength of the incident light and can significantly influence the optical properties like absorption and scattering.

Applications of Wavelength Control in Nanotechnology

By precisely controlling the wavelength of light, researchers can create highly sensitive biosensors that detect minute quantities of biological molecules. Additionally, photolithography in semiconductor manufacturing uses specific wavelengths to etch patterns at the nanoscale, essential for creating modern electronic devices.

Challenges in Working with Light at the Nanoscale

One of the main challenges is overcoming the diffraction limit, which restricts the resolution to about half the wavelength of light used. Techniques like super-resolution microscopy have been developed to bypass this limit, allowing for imaging at an even smaller scale.

Future Directions

Future research is focused on developing new materials that can interact with a broader range of wavelengths and improving nanophotonic devices. This includes creating metamaterials with tailored optical properties that can manipulate light in ways not possible with natural materials.

Relevant Publications

Combining Fresnel and block prisms to measure large angles of strabismic deviation.

Issue Release: 2024

[Fluorescence microscopy for brain activity imaging: one-photon microscopy and its application to pharmacological research].

Issue Release: 2024

Anisotropy-free arrayed waveguide gratings on X-cut thin film lithium niobate platform of in-plane anisotropy.

Issue Release: 2024

Enhancement of visible light response of TiO2 photocatalyst by 3D-deposited Ag nanowires and its charge separation mechanism.

Issue Release: 2024

Microchanneling and ultrasonic delivery of gold and platinum nanoparticles for selective photothermolysis of sebaceous follicles in the treatment of acne: a pilot study using porcine skin.

Issue Release: 2024

An innovative method of the vertical coupling effect improvement to the tandem Cu(In, Ga)Se/perovskite solar cells using Ag cluster nanostructures.

Issue Release: 2024

Thermoluminescence properties and new insights on the UV-vis absorption features of colorless quartz after γ-ray irradiation.

Issue Release: 2024

Upconversion nanoparticles doped optical lens: let\'s see the near-infrared light.

Issue Release: 2024

Demystifying In Vivo Bioluminescence Imaging of a Chagas Disease Mouse Model for Drug Efficacy Studies.

Issue Release: 2024

Exploring the efficacy of subwavelength gratings as short-wavelength infrared filters.

Issue Release: 2024

The Role of Chromatic Aberration in Vision.

Issue Release: 2024

Processing natural bamboo into white bamboo through photocatalyzed lignin oxidation.

Issue Release: 2024

Multispectral breast image grayscale and quality enhancement by repeated pair image registration & accumulation method.

Issue Release: 2024

Preparation of a self-matting, anti-fingerprint and skin-tactile wood coating via biomimetic self-wrinkling patterns.

Issue Release: 2024

In-situ and wavelength-dependent photocatalytic strain evolution of a single Au nanoparticle on a TiO film.

Issue Release: 2024

Forward-backward wavefront manipulation of orthogonal linearly polarized waves based on a metasurface zone plate.

Issue Release: 2024

The role of red and white light in optimizing growth and accumulation of plant specialized metabolites at two light intensities in medical cannabis ( L.).

Issue Release: 2024

A Novel Ratiometric Photoelectrochemical Biosensor Based on Front and Back Illumination for Sensitive and Accurate Glutathione Sensing.

Issue Release: 2024

Comparison of the Differences between Two-Photon Excitation, Upconversion, and Conventional Photodynamic Therapy on Cancers in In Vitro and In Vivo Studies.

Issue Release: 2024

Wavelength-Dependent Activity of Oxygen Species in Propane Conversion on Rutile TiO(110).

Issue Release: 2024

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