Patents by Inventor Seon Do LIM

Seon Do LIM has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12710460
    Abstract: An electromagnetically induced grating-based electric field detection system and method are provided, which enable the creation of an electromagnetically induced transparency grating using a low-wavelength laser and enables real-time electromagnetic wave measurement by avoiding the frequency reprocessing of the signal that is essential in the existing Rydberg atom-based electric field measurement technology. The detection system may include a vapor cell; an irradiation light source which irradiates irradiation light to be incident on the vapor cell; a combined light source which irradiates combined light to be incident on the vapor cell; a reflector which reflects the combined light that has passed through the vapor cell and makes it incident on the vapor cell; an electromagnetic wave generator which generates an electromagnetic wave to be incident on one side surface of the vapor cell; and a reflected light detector which detects a reflected light released from the vapor cell.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: August 18, 2026
    Assignee: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE
    Inventors: In Ho Bae, Seon Do Lim, No Weon Kang
  • Patent number: 12566224
    Abstract: The present disclosure relates to a vapor cell and a vapor cell temperature control system, and more specifically, to a vapor cell and a vapor cell temperature control system which use a laser to control the temperature of the vapor cell without distortion of an electromagnetic field. The vapor cell according to an embodiment of the present disclosure may include a body provided with a penetration part, which is a space in which a reactive material is accommodated, and a black material provided on a part of an outer surface of the body. According to an embodiment of the present disclosure, there is an advantage in that the intensity and phase of electromagnetic waves in the micromagnetic field and millimeter wave band can be measured by minimizing distortion and removing noise caused by a temperature control device when measuring electromagnetic fields using an atomic system.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: March 3, 2026
    Assignee: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE
    Inventors: In Ho Bae, Seong Chong Park, Jae Keun Yoo, Seon Do Lim, Young Pyo Hong, No Weon Kang
  • Publication number: 20250137849
    Abstract: Disclosed is a vicarious radiometric calibration system. More specifically, disclosed is a ground reference target for calibrating a digital signal that is obtained through a sensor when a landmark is observed from a satellite or an airplane by using a spectral reflection factor or spectral emissivity of the ground reference target and a vicarious radiometric calibration system including the same. It is possible to derive accurate measurement results for the MWIR region by installing a ground reference target having predetermined reflectance or emissivity and having a special form on the ground with respect to the calibration of a sensor for remote exploration, such as aviation, space, and astronomy, and performing absolute radiometric calibration by using images that are obtained through the ground reference target.
    Type: Application
    Filed: October 25, 2024
    Publication date: May 1, 2025
    Applicants: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE, KOREA AEROSPACE RESEARCH INSTITUTE
    Inventors: Seon Do LIM, Dong Hoon Lee, Dong Hwan Cha, Doo Chun Seo
  • Publication number: 20240426950
    Abstract: The present disclosure relates to a vapor cell and a vapor cell temperature control system, and more specifically, to a vapor cell and a vapor cell temperature control system which use a laser to control the temperature of the vapor cell without distortion of an electromagnetic field. The vapor cell according to an embodiment of the present disclosure may include a body provided with a penetration part, which is a space in which a reactive material is accommodated, and a black material provided on a part of an outer surface of the body. According to an embodiment of the present disclosure, there is an advantage in that the intensity and phase of electromagnetic waves in the micromagnetic field and millimeter wave band can be measured by minimizing distortion and removing noise caused by a temperature control device when measuring electromagnetic fields using an atomic system.
    Type: Application
    Filed: November 8, 2021
    Publication date: December 26, 2024
    Inventors: In Ho BAE, Seong Chong PARK, Jae Keun YOO, Seon Do LIM, Young Pyo HONG, No Weon KANG
  • Publication number: 20240353459
    Abstract: The present disclosure relates to an electromagnetically induced grating-based electric field detection system and method and, more particularly, to an electric field detection system and method which enable the creation of an electromagnetically induced transparency grating using a low-wavelength laser and enables real-time electromagnetic wave measurement by avoiding the frequency reprocessing of the signal that is essential in the existing Rydberg atom-based electric field measurement technology.
    Type: Application
    Filed: December 21, 2021
    Publication date: October 24, 2024
    Inventors: In Ho BAE, Seon Do LIM, No Weon KANG