Hou Lantian's Academic Contribution

1, the nano-gold material is completed, and the receiving surface of absolute blackbody is realized.

In order to break the western monopoly and blockade, China began to independently develop infrared vacuum thermocouples and absolute blackbody receivers. The key process is how to obtain the non-selective gold-black receiving surface, otherwise it can not be used in infrared spectrometer or in the detection and measurement of middle and far infrared. After three years of research, Hou Lantian manufactured a Schwartz thermocouple that reached the British level, which enabled the domestic infrared spectrometer at that time to have its own vacuum thermocouple receiver. Now we know how to obtain the nano-scale gold distribution, and this process has also been adopted by other heat receivers (this research won the second prize of the Ministry of Science and Technology).

2. The infrared night vision device is developed.

During the period of 1969, Hou Lantian's team undertook the development of the night vision device of the secondary camera, and Hou Lantian was the general manager of the project. The whole process of optical system, power supply and image converter has been completed, especially the measurement technology of photocathode quantum efficiency, which is very important for testing cathode quality.

3. Undertake the overall team leader task of Red Arrow-73A anti-tank missile.

From 1975 to 1980, Hou Lantian served as the overall team leader of the Red Arrow-73A weapon system in Jilin. Responsible for the development of infrared guided anti-tank missiles, leading military missions involving more than 100 technicians from three universities, three research institutes and two factories. 1978 made a technical report on the development of this weapon system on behalf of Jilin province at the national anti-tank missile work report meeting, which was praised by the National Missile Administration at that time. In addition, Hou Lantian is also responsible for the design and development of multi-element subtraction infrared tracking goniometer. Based on the existing cross detectors abroad, the goniometer adds the technology of designing multiple detectors by subtraction, and develops related electronic technology, which improves the elimination of background, increases the signal-to-noise ratio and realizes effective tracking. These works provided experience for the later development of anti-tank missiles.

4. A new infrared heating theory is put forward.

In the promotion of infrared heating energy-saving technology started by the State Economic and Trade Commission in the early 1980s, people almost invariably adopted the matching absorption heating theory of Hideki Hosokawa of Japan. This method has many shortcomings and is even wrong under some conditions. In order to make people in this field correctly understand the mechanism of infrared radiation heating materials, Hou Lantian put forward the theory of unmatched absorption of the interaction between infrared radiation and materials of thick materials and the theory of full-mode coverage in rapid heating infrared heating technology. This is summarized from practice and widely used in practical engineering. Two typical examples are the infrared car painting booth of Changchun Tieyou Group (won the third prize of the National Spark Award) and the high infrared heating technology being promoted by the State Economic and Trade Commission. Only these two projects have created tens of millions of output value in recent years, saving a lot of energy for the country.

5. Completed the international advanced level and the only optical fiber for transmitting infrared energy in China.

After 1985, we began to develop optical fiber for transmitting CO2 laser energy, which was a key research project of our country at that time, only less than five years later than foreign countries. He has successively undertaken provincial key projects, national key projects and national 863 projects in 75, 85 and 95, and achieved world-class results, which were highly praised by academicians such as Wang Daheng and Zhou Bingkun.

Hou Lantian systematically studied the structure, defects and properties of amorphous silicon dioxide and its application in optical fibers by various means, especially the methods and mechanism of reducing non-bridging oxygen defects, E-center defects and peroxy-based defects in timely glass. According to Hou Lantian's achievements, Jilin Provincial Science and Technology Commission has made a key research on CO2 laser CVD. At the same time, Hou Lantian also studied the characteristics of liquid-core optical fiber made of time-space core optical fiber. The direct forming method of single crystal fiber was studied with hollow optical fiber as crucible (task 75863). On the basis of hollow-core time-sensitive fiber, the research of polycrystalline GeO2 _ 2 hollow-core fiber continues, and gratifying progress has been made.

Hou Lantian began to study single crystal energy transmission fiber and turned to study hollow polycrystalline fiber, which is a leap. The pure GeO2 _ 2 _ 2 polycrystalline hollow fiber of Hou Lantian's team is a pioneering work. It combines the advantages of crystal fiber and hollow fiber to produce world-advanced energy transmission fiber, which has been used in hospitals and adopted by foreign countries (South Korea, etc.). ) manufacturer. We have created the technology of depositing and drawing polycrystalline GeO2 _ 2 hollow optical fiber, and adopted the method of nano polycrystalline layer and double-layer dielectric film, which reduced the transmission loss of optical fiber, raised the transmission threshold of optical fiber and improved the service characteristics of optical fiber, and made important contributions to the development of energy transmission optical fiber in China. The transmission efficiency of CO2 laser can reach more than 95%. Many indicators have exceeded the international advanced level.

6. We have successfully developed our own photonic crystal optical sheet, and its performance has reached the international advanced level.

Photonic crystals and photonic crystal fibers are considered as epoch-making new materials. Hou Lantian's team undertook the only research project on photonic crystal fiber in the national key basic research plan, the only project on photonic crystal fiber in the National Tenth Five-Year Plan 863 photoelectric plan, and the task of manufacturing ultra-high power fiber laser with photonic crystal fiber, which shows that Hou Lantian's academic level of photonic crystal fiber is recognized in China and is in an undisputed leading position. The photonic crystal fiber we developed has been used by our company, and has achieved excellent scientific research results and high-level papers. In particular, the integrated photonic crystal fiber developed by Hou Lantian's team is the first in the world and the level is also advanced in the world.

In a word, Hou Lantian's team has an undisputed leading position in the field of special optical fiber research in China and has made important academic contributions to the field of special optical fiber in China.

7. Optical fiber and photonic crystal fiber that transmit infrared energy have shown important application value.

The Department of Chemistry of Peking University and Beijing No.2 Optical Instrument Factory have made excellent achievements in medical testing, which is superior to that of the United States. The whole machine is being designed and put into formal clinical use.

Tsinghua University successfully carried out biomedical surface-enhanced Raman spectroscopy detection experiment with hollow photonic crystal fiber developed by Hou Lantian's team, and the research work was published in the influential journal Applied Physics Express. Some units spoke highly of it.

8. In recent years, more than 65,438+000 academic papers have been published in important magazines at home and abroad, including 39 SCI papers and 40 EI papers. He has won many provincial and ministerial awards and 5 invention patents.