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Optical imaging method based on molecular arrangement orientation

An optical imaging and molecular arrangement technology, applied in optics, nonlinear optics, optical devices, etc., can solve problems such as not being well researched and applied, and achieve long-term caching, rich and vivid colors, and low cost.

Inactive Publication Date: 2012-06-13
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The combined application of molecular orientation and ultrafast laser has not been well researched and applied

Method used

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  • Optical imaging method based on molecular arrangement orientation
  • Optical imaging method based on molecular arrangement orientation
  • Optical imaging method based on molecular arrangement orientation

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: In this embodiment, 800nm ​​femtosecond laser pulses pass through the information plate as write pulse alignment molecules, and 400nm femtosecond laser pulses are used as read pulses to perform two-dimensional monochromatic imaging. However, the wavelength of the write pulse or the read pulse is not limited to the above two wavelengths, and can be an ultrashort laser pulse of any other wavelength, such as ultraviolet, visible or infrared. figure 2 It is a schematic diagram of the structure of this embodiment.

[0026] as attached figure 2 As shown, M1, M2, M4, M5, and M6 are broadband high-reflection mirrors with a center wavelength of 800nm, M3 is a broadband high-reflection mirror with a center wavelength of 400nm, BS1 is an 800nm ​​beam splitter, and BS2 is a high-reflection 800nm ​​anti-reflection mirror 400nm beam splitter, BBO is frequency doubling crystal.

[0027] In this embodiment, the femtosecond pulsed laser 1 with a center wavelength of 80...

Embodiment 2

[0028] Embodiment 2: In this embodiment, 800nm ​​pulsed light is used to pass through a three-dimensional transparent object as a write pulse to align molecules, and 400nm pulsed light is used as a read pulse to perform three-dimensional image morphology and phase information imaging. image 3 It is a schematic diagram of the structure of this embodiment.

[0029] as attached image 3 As shown, M1, M2, M4, M5, and M6 are broadband high-reflection mirrors with a center wavelength of 800nm, M3 is a broadband high-reflection mirror with a center wavelength of 400nm, BS1 is an 800nm ​​beam splitter, and BS2 is a high-reflection 800nm ​​anti-reflection mirror 400nm beam splitter, BBO is frequency doubling crystal.

[0030]The difference between Embodiment 2 and Embodiment 1 is that the pump light passes through the three-dimensional transparent object 6 . Such pump light aligns and aligns the molecules, so that the aligned molecules carry three-dimensional image information. Whe...

Embodiment 3

[0031] Embodiment 3: In this embodiment, 800nm ​​pulsed light is used to pass through the information plate 2 as write pulses to align molecules, supercontinuous white light is used as read pulses, and a prism is used to manage the dispersion of the read pulses, and color imaging is realized through the imaging system. attached Figure 4 It is a schematic diagram of the structure of this embodiment.

[0032] as attached Figure 4 As shown, M1, M2, M3, M6, M7, and M8 are broadband high-reflection mirrors with a center wavelength of 800nm, M4 and M5 are metal-coated high-reflection mirrors, BS1 is an 800nm ​​beam splitter, and BS2 is a high-reflection 800nm ​​mirror. Antireflection 400nm beam splitter, PP is prism pair 8.

[0033] In implementation 3, supercontinuous white light is generated by focusing the probe light into a gas box 7 (2 atm) filled with Xe gas, which is used as a read pulse to read the image information carried by the aligned molecules. Due to the presence ...

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Abstract

The invention relates to the technical field of ultra-fast laser, in particular to an optical imaging method based on molecular arrangement orientation. The method is realized through a weak-light polarization spectrum detection technology and comprises the following steps of: uploading image information to orientation molecules through pumping orientation modules loaded with the image information, then reading the information loaded by the orientation modules by using detection light, and finally displaying images. The method can realize two-dimensional imaging, three-dimensional imaging andcolored imaging. The invention has the advantages that due to the full-glossy image display, the method can be used for remote-distance image projection; the method has low cost, environmental protection, more abundant and vivid color when used for colored imaging, can realize the long-time caching of the image information in the arrangement and orientation modules and read the image information as required.

Description

technical field [0001] The invention relates to the field of ultrafast laser technology, in particular to an optical imaging method based on molecular arrangement and orientation realized by pumping and detecting technology. Background technique [0002] Laser display can cover 90% of the colors in the color space, so it is considered possible to become the fourth generation of display technology after digital display. Laser display technology inherits all the advanced technical indicators of the previous three generations of display technology, such as large screen, high resolution, digitization, etc. At the same time, because the laser display uses a laser light source, compared with the existing picture tube projection display, bulb projection display, liquid crystal and plasma flat panel display, its biggest advantage lies in the color, which has a larger color gamut and reproduces a colorful world. . Laser is a line spectrum with extremely high color saturation, which...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/24G02F1/35
Inventor 陆培芬吴健刘佳蔡华杨旋曾和平
Owner EAST CHINA NORMAL UNIV