Material for multiphoton fluorescence microscope and multiphoton fluorescence microscope
A photosensitized composite material and a material, an element, a device, and the like, which employ the photosensitized composite material, are provided. In the photosensitized composite material, multiphoton absorption compounds are highly sensitized for practical use by utilizing an enhanced plasmon field. The photosensitized composite material has a structure where the multiphoton absorption compounds are linked to the surface of a fine metal particle through linking groups. The fine metal particle generates an enhanced surface plasmon field in resonance with a multiphoton excitation wavelength. The multiphoton absorption compounds have a molecular structure enabling multiphoton absorption. The photosensitized composite material is contained in or used for, for example, a three-dimensional memory material and a three-dimensional recording medium, an optical power limiting material and an optical power limiting element, a photocuring material and a stereolithography system, and a fluorescent material for a multiphoton fluorescence microscope and a multiphoton fluorescence microscope.
1. A photosensitized composite material, comprising:
a fine metal particle which generates an enhanced surface plasmon field in resonance with a multiphoton excitation wavelength; and
a multiphoton absorption compound which has a molecular structure enabling multiphoton absorption,
wherein the multiphoton absorption compound is linked to a surface of the fine metal particle, wherein the multiphoton absorption compound has the following structural formula (2):
2. The photosensitized composite material according to claim 1 , wherein the multiphoton excitation wavelength is a two-photon excitation wavelength, and the multiphoton absorption compound is a two-photon absorption compound.
3. The photosensitized composite material according to claim 1 , wherein the fine metal particle is a gold nanorod.
4. A three-dimensional memory material, comprising:
a photosensitized composite material,
wherein the three-dimensional memory material is enabled to perform recording and reproducing in a depth direction of a layer surface by light incident to the layer surface in a vertical direction,
wherein the photosensitized composite material comprises a fine metal particle which generates an enhanced surface plasmon field in resonance with a multiphoton excitation wavelength, and a multiphoton absorption compound which has a molecular structure enabling multiphoton absorption, and
wherein the multiphoton absorption compound is linked to a surface of the fine metal particle, wherein the multiphoton absorption compound has the following structural formula (2):
5. An optical power limiting material, comprising:
a photosensitized composite material,
wherein the photosensitized composite material comprises a fine metal particle which generates an enhanced surface plasmon field in resonance with a multiphoton excitation wavelength, and a multiphoton absorption compound which has a molecular structure enabling multiphoton absorption, and
wherein the multiphoton absorption compound is linked to a surface of the fine metal particle, wherein the multiphoton absorption compound has the following structural formula (2):