By WDQ OPTICS | 09 March 2023 | 0 Comments
What is the difference between laser glass and ordinary optical glass?
What is the difference between laser glass and ordinary optical glass? What are the common optical glasses?
Glass is an object that we often touch and use in our daily life. From daily necessities such as glasses to building decoration materials such as glass curtain walls, glass has made great contributions to the development of world civilization. For example, we often hear of glass and optical glass, which are often used to make glass and optical glass and have excellent performance.
Next, we will briefly introduce the difference between laser glass and ordinary optical glass, and explain the common optical glass.
1、 What is the difference between laser glass and ordinary optical glass
Laser glass is a solid laser material based on glass. It is widely used in various types of solid-state laser devices and has become the main laser material for high-power and high-energy lasers.
Laser glass is composed of matrix glass and activated ions. The physical and chemical properties of laser glass mainly depend on the matrix glass, and its spectral properties are mainly determined by the activated ions, but there are also mutual relations and influences between them. In the research and development of new laser glass, the relationship between them is very important,
Until the mid-1980s, the matrix glass system was mainly composed of silicate, phosphate and fluorophosphate. In recent years, the research of fluoride laser glass was very active, and it was an excellent laser matrix material. The phonon energy of fluoride glass was low, so it had no radiation and little transition. This characteristic is in the development of up-conversion laser
In order to benefit, the active ions of laser glass are mainly rare earth ions.
2、 What are the common optical glasses
1. Colorless optical glass
It has specific requirements for optical constants, and has the characteristics of high transmittance in the visible region, non-selective absorption and coloring. It can be divided into crown glass and flint glass according to the size of Abbe number, and each type can be divided into several types according to the height of refractive index, and arranged in order according to the size of refractive index. It is mainly used as lenses, prisms, mirrors, etc. for telescopes, microscopes, cameras, etc
2. Radiation proof optical glass
It has great absorption capacity for high-energy irradiation, including high-lead glass and CaO-B2O2 system glass, which can prevent γ X-ray and X-ray irradiation, the latter can absorb slow neutrons and thermal neutrons, and is mainly used in nuclear industry, medical field and other fields as shielding and peeping window materials
3. Irradiation resistant optical glass
In certain γ Under the irradiation of X rays and X rays, the transmittance of visible area changes less, and the variety and brand are the same as that of colorless optical glass, which is used to manufacture optical instruments and peeping windows under high energy irradiation
4. Colored optical glass
Also known as filter glass. It has selective absorption and transmission properties for specific wavelengths in the ultraviolet, visible, and infrared regions. According to spectral characteristics, it is divided into three categories: selective absorption, cutoff, and neutral gray; According to the coloring mechanism, it can be divided into three categories: ion coloring, metal colloid coloring and sulfur selenide coloring, which are mainly used to make light filters.
5. Ultraviolet and infrared optical glass
"It has a specific optical constant and high transmittance in the ultraviolet or infrared waveband, and is used as an ultraviolet or infrared optical instrument or as a window material.".
Glass is an amorphous inorganic nonmetallic material, which is generally made with a variety of inorganic minerals (such as quartz sand, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash, etc.) as the main raw materials, and a small amount of auxiliary raw materials. Its main components are silicon dioxide and other oxides. The chemical composition of ordinary glass is Na2SiO3, CaSiO3, SiO2 or Na2O · CaO · 6SiO2, etc. The main composition is silicate double salt, which is an amorphous solid with irregular structure. It is widely used in buildings to isolate wind and light, and belongs to mixture. There are also colored glass mixed with oxides or salts of some metals to show color, and tempered glass made by physical or chemical methods. Some transparent plastics (such as polymethylmethacrylate) are sometimes called plexiglass.
Glass is an object that we often touch and use in our daily life. From daily necessities such as glasses to building decoration materials such as glass curtain walls, glass has made great contributions to the development of world civilization. For example, we often hear of glass and optical glass, which are often used to make glass and optical glass and have excellent performance.
Next, we will briefly introduce the difference between laser glass and ordinary optical glass, and explain the common optical glass.
1、 What is the difference between laser glass and ordinary optical glass
Laser glass is a solid laser material based on glass. It is widely used in various types of solid-state laser devices and has become the main laser material for high-power and high-energy lasers.
Laser glass is composed of matrix glass and activated ions. The physical and chemical properties of laser glass mainly depend on the matrix glass, and its spectral properties are mainly determined by the activated ions, but there are also mutual relations and influences between them. In the research and development of new laser glass, the relationship between them is very important,
Until the mid-1980s, the matrix glass system was mainly composed of silicate, phosphate and fluorophosphate. In recent years, the research of fluoride laser glass was very active, and it was an excellent laser matrix material. The phonon energy of fluoride glass was low, so it had no radiation and little transition. This characteristic is in the development of up-conversion laser
In order to benefit, the active ions of laser glass are mainly rare earth ions.
2、 What are the common optical glasses
1. Colorless optical glass
It has specific requirements for optical constants, and has the characteristics of high transmittance in the visible region, non-selective absorption and coloring. It can be divided into crown glass and flint glass according to the size of Abbe number, and each type can be divided into several types according to the height of refractive index, and arranged in order according to the size of refractive index. It is mainly used as lenses, prisms, mirrors, etc. for telescopes, microscopes, cameras, etc
2. Radiation proof optical glass
It has great absorption capacity for high-energy irradiation, including high-lead glass and CaO-B2O2 system glass, which can prevent γ X-ray and X-ray irradiation, the latter can absorb slow neutrons and thermal neutrons, and is mainly used in nuclear industry, medical field and other fields as shielding and peeping window materials
3. Irradiation resistant optical glass
In certain γ Under the irradiation of X rays and X rays, the transmittance of visible area changes less, and the variety and brand are the same as that of colorless optical glass, which is used to manufacture optical instruments and peeping windows under high energy irradiation
4. Colored optical glass
Also known as filter glass. It has selective absorption and transmission properties for specific wavelengths in the ultraviolet, visible, and infrared regions. According to spectral characteristics, it is divided into three categories: selective absorption, cutoff, and neutral gray; According to the coloring mechanism, it can be divided into three categories: ion coloring, metal colloid coloring and sulfur selenide coloring, which are mainly used to make light filters.
5. Ultraviolet and infrared optical glass
"It has a specific optical constant and high transmittance in the ultraviolet or infrared waveband, and is used as an ultraviolet or infrared optical instrument or as a window material.".
Glass is an amorphous inorganic nonmetallic material, which is generally made with a variety of inorganic minerals (such as quartz sand, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash, etc.) as the main raw materials, and a small amount of auxiliary raw materials. Its main components are silicon dioxide and other oxides. The chemical composition of ordinary glass is Na2SiO3, CaSiO3, SiO2 or Na2O · CaO · 6SiO2, etc. The main composition is silicate double salt, which is an amorphous solid with irregular structure. It is widely used in buildings to isolate wind and light, and belongs to mixture. There are also colored glass mixed with oxides or salts of some metals to show color, and tempered glass made by physical or chemical methods. Some transparent plastics (such as polymethylmethacrylate) are sometimes called plexiglass.
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