scholarly journals Stimulated emission of near-infrared radiation in silicon fin light-emitting diode

2011 ◽  
Vol 98 (26) ◽  
pp. 261104 ◽  
Author(s):  
S. Saito ◽  
T. Takahama ◽  
K. Tani ◽  
M. Takahashi ◽  
T. Mine ◽  
...  
Keyword(s):  
Infrared Radiation ◽  
Near Infrared ◽  
Light Emitting Diode ◽  
Stimulated Emission ◽  
Near Infrared Radiation ◽  
Light Emitting

scholarly journals How Far Can Ki-Energy Reach?—A Hypothetical Mechanism for the Generation and Transmission of Ki-Energy

2009 ◽  
Vol 6 (3) ◽  
pp. 379-391 ◽  
Author(s):  
S. Tsuyoshi Ohnishi ◽  
Tomoko Ohnishi
Keyword(s):  
Infrared Radiation ◽  
Quantum Physics ◽  
Near Infrared ◽  
Interference Filter ◽  
Stimulated Emission ◽  
Divergence Angle ◽  
Mirror Reflection ◽  
Near Infrared Radiation ◽  
Light Amplification ◽  
Hypothetical Mechanism

‘Ki-energy’, which can be enhanced through the practice of Nishino Breathing Method, was reported to have beneficial health effects. Although Ki-energy can play an important role in complementary and alternative medicine (CAM), as yet it is unknown how Ki-energy is generated, transmitted through air and received by another individual. We previously proposed that Ki-energy may include near-infrared radiation, and that the wavelength was between 800 and 2700 nm. Since Ki-energy is reflected by a mirror, we believe that the ‘Ki-beam’ has a small divergence angle. It can also be guided in a desired direction. The acrylic mirror reflection experiment suggests that the wavelength may be between 800 and 1600 nm. Using a linear variable interference filter, we found that Ki-energy may have a peak around 1000 nm. We have also observed that ‘sensitive’ practitioners responded to Ki sent from a distance of 100 m. All of these results suggest that (i) Ki-energy can be guided as a directional ‘beam’ with a small divergence angle; (ii) the beam can be reflected by a mirror and (iii) Ki-energy may have a specific wavelength. Since these properties are characteristics of the laser radiation, we propose a quantum physics-based mechanism of ‘Light Amplification by the Stimulated Emission of Radiation’ (i.e. LASER) for the generation of Ki-energy. Volunteers responded to Ki even with a blindfold. This suggests that the skin must be detecting Ki-energy. We propose that the detector at the skin level may also have the stimulated emission mechanism, which amplifies the weak incident infrared radiation.

scholarly journals Eye Safety Related to Near Infrared Radiation Exposure to Biometric Devices

2011 ◽  
Vol 11 ◽  
pp. 520-528 ◽  
Author(s):  
Nikolaos Kourkoumelis ◽  
Margaret Tzaphlidou
Keyword(s):  
Infrared Radiation ◽  
Near Infrared ◽  
Biological Effects ◽  
Infrared Region ◽  
Infrared Light ◽  
Near Infrared Radiation ◽  
Potential Threat ◽  
Incoherent Light ◽  
Light Emitting ◽  
Living Tissues

Biometrics has become an emerging field of technology due to its intrinsic security features concerning the identification of individuals by means of measurable biological characteristics. Two of the most promising biometric modalities are iris and retina recognition, which primarily use nonionizing radiation in the infrared region. Illumination of the eye is achieved by infrared light emitting diodes (LEDs). Even if few LED sources are capable of causing direct eye damage as they emit incoherent light, there is a growing concern about the possible use of LED arrays that might pose a potential threat. Exposure to intense coherent infrared radiation has been proven to have significant effects on living tissues. The purpose of this study is to explore the biological effects arising from exposing the eye to near infrared radiation with reference to international legislation.

scholarly journals Stimulated emission of near-infrared radiation by current injection into silicon (100) quantum well

2009 ◽  
Vol 95 (24) ◽  
pp. 241101 ◽  
Author(s):  
S. Saito ◽  
Y. Suwa ◽  
H. Arimoto ◽  
N. Sakuma ◽  
D. Hisamoto ◽  
...  
Keyword(s):  
Quantum Well ◽  
Infrared Radiation ◽  
Near Infrared ◽  
Current Injection ◽  
Stimulated Emission ◽  
Near Infrared Radiation

Near infrared radiation shielding using CsxWO3 nanoparticles for infrared mini light-emitting diodes

2020 ◽  
Vol 260 ◽  
pp. 126961 ◽  
Author(s):  
Chi-Ping Li ◽  
Chieh-Yu Kang ◽  
Shu-Ling Huang ◽  
Po-Tsung Lee ◽  
Hao-Chung Kuo ◽  
...  
Keyword(s):  
Infrared Radiation ◽  
Near Infrared ◽  
Light Emitting Diodes ◽  
Radiation Shielding ◽  
Near Infrared Radiation ◽  
Light Emitting

scholarly journals Hyperthermia by near infrared radiation induced immune cells activation and infiltration in breast tumor

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Wan Fatin Amira Wan Mohd Zawawi ◽  
M. H. Hibma ◽  
M. I. Salim ◽  
K. Jemon
Keyword(s):  
Breast Cancer ◽  
T Cells ◽  
Side Effects ◽  
Immune Cells ◽  
Infrared Radiation ◽  
Near Infrared ◽  
Tumor Regression ◽  
Immunohistochemical Analysis ◽  
Therapeutic Effects ◽  
Near Infrared Radiation

AbstractBreast cancer is the most common cancer that causes death in women. Conventional therapies, including surgery and chemotherapy, have different therapeutic effects and are commonly associated with risks and side effects. Near infrared radiation is a technique with few side effects that is used for local hyperthermia, typically as an adjuvant to other cancer therapies. The understanding of the use of near NIR as a monotherapy, and its effects on the immune cells activation and infiltration, are limited. In this study, we investigate the effects of HT treatment using NIR on tumor regression and on the immune cells and molecules in breast tumors. Results from this study demonstrated that local HT by NIR at 43 °C reduced tumor progression and significantly increased the median survival of tumor-bearing mice. Immunohistochemical analysis revealed a significant reduction in cells proliferation in treated tumor, which was accompanied by an abundance of heat shock protein 70 (Hsp70). Increased numbers of activated dendritic cells were observed in the draining lymph nodes of the mice, along with infiltration of T cells, NK cells and B cells into the tumor. In contrast, tumor-infiltrated regulatory T cells were largely diminished from the tumor. In addition, higher IFN-γ and IL-2 secretion was observed in tumor of treated mice. Overall, results from this present study extends the understanding of using local HT by NIR to stimulate a favourable immune response against breast cancer.

Electrically driven single microribbon based near-infrared exciton-polariton light-emitting diode

CrystEngComm ◽  
2021 ◽  
Author(s):  
Mingming Jiang ◽  
Fupeng Zhang ◽  
Kai Tang ◽  
Peng Wan ◽  
Caixia Kan
Keyword(s):  
High Performance ◽  
Near Infrared ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Light Sources ◽  
Coherent Light ◽  
Light Emitting ◽  
Exciton Polaritons ◽  
Laser Devices

Achieving electrically-driven exciton-polaritons has drawn substantial attention toward developing ultralow-threshold coherent light sources, containing polariton laser devices and high-performance light-emitting diodes (LEDs). In this work, we demonstrate an electrically driven...

Heat-resistant reflectors for enhanced 850-nm near infrared light-emitting diode efficiency

2021 ◽  
pp. 103879
Author(s):  
Hyung-Joo Lee ◽  
Gwang-Hoon Park ◽  
Jin-Su So ◽  
Choong-Hun Lee ◽  
Jae-Hoon Kim ◽  
...  
Keyword(s):  
Near Infrared ◽  
Light Emitting Diode ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Light Emitting ◽  
Heat Resistant
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