Thermodynamic Behavior of Single Molecule Photon Cryocooler (Ⅰ)

QIN Wei-ping; QIN Guan-shi; ZHANG Ji-sen; WU Chang-feng; ZHAO Dan; LIU Huang-qing; WANG Ji

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Thermodynamic Behavior of Single Molecule Photon Cryocooler (Ⅰ)

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- Thermodynamic Behavior of Single Molecule Photon Cryocooler (Ⅰ)
- Chinese Journal of Luminescence Vol. 22, Issue 3, Pages: 281-288(2001)
- 作者机构：
  
  1. 中国科学院激发态物理开放实验室,吉林长春,130021
  2. 吉林大学电子工程系, 集成光电子学国家重点联合实验室,吉林长春,130023
  3. 中国科学院长春光学精密机械与物理研究所,吉林长春,130021
- 作者简介：
- 基金信息：
- DOI：
  CLC： O483
- Received：10 April 2001，
  
  Revised：25 May 2001，
  
  Published：30 August 2001
- 稿件说明：
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秦伟平, 秦冠仕, 张继森, 吴长锋, 赵丹, 刘晃清, 王继伟, 黄世华, 杜国同. 单分子-光子制冷泵的热力学行为(Ⅰ)[J]. 发光学报, 2001,22(3): 281-288

QIN Wei-ping, QIN Guan-shi, ZHANG Ji-sen, WU Chang-feng, ZHAO Dan, LIU Huang-qing, WANG Ji-wei, HUANG Shi-hua, DU Guo-tong. Thermodynamic Behavior of Single Molecule Photon Cryocooler (Ⅰ)[J]. Chinese Journal of Luminescence, 2001,22(3): 281-288
秦伟平, 秦冠仕, 张继森, 吴长锋, 赵丹, 刘晃清, 王继伟, 黄世华, 杜国同. 单分子-光子制冷泵的热力学行为(Ⅰ)[J]. 发光学报, 2001,22(3): 281-288 DOI：

QIN Wei-ping, QIN Guan-shi, ZHANG Ji-sen, WU Chang-feng, ZHAO Dan, LIU Huang-qing, WANG Ji-wei, HUANG Shi-hua, DU Guo-tong. Thermodynamic Behavior of Single Molecule Photon Cryocooler (Ⅰ)[J]. Chinese Journal of Luminescence, 2001,22(3): 281-288 DOI：

摘要

建立了一般意义上的单分子-光子泵模型

并用计算机模拟了在不同能量的光子激发下单个分子作为制冷泵时的量子跃迁过程

研究了单分子-光子泵处于基态和激发态时的热激发过程以及在发生荧光辐射时的声子参与情况

得出了基态具有较强的制冷能力的结论。基态和激发态在光吸收和发射过程中热力学效应是不同的

因此在选择反斯托克斯荧光制冷材料时

发光中心的基态能级劈裂更具重要性。

Abstract

A model of Single Molecule Photon Cryocooler(SMPC) was built in generally meaning. Quantum transitions in single molecule

which was excited by photons with different energy and treated as a cryocooler

were simulated with computer. Frequencies and number of phonons

which participate in thermal excitation in ground state and in excited states and during fluorescence emitting

were studied. The conclusion that single molecule in ground state has more cooling power was obtained. So in optical absorption and emission process

the thermo dynamic effect in ground state is different from that in excited state for fluorescent cooling of single molecule. So

when we choose cooling material for anti Stokes fluorescent cooling usage

splits of the energy level in ground state of luminescence center is more important than in excited state.

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