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DTSTART:19451014T230000
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DTSTAMP:20231020T102350Z
UID:708440AE-3F44-4622-A714-8835DC4FC2A7
DTSTART;TZID=Asia/Kolkata:20231011T120000
DTEND;TZID=Asia/Kolkata:20231011T130000
DESCRIPTION:Terahertz (THz) spectroscopy offers large opportunities in the 
 study of natural as well as artificial materials of various kinds. We have
  developed several Terahertz (THz) spectroscopic techniques to study diffe
 rent materials\, from single crystals to metamaterials. We have developed 
 different new designs for the THz sources. We will briefly mention those. 
 We studied THz optical properties of t-Se\, Bi2Se3\, and Vanadium doped [1
 00] β-Ga2O3 using Terahertz Time-Domain Spectroscopy (THz-TDS). β-Ga2O3 
 is a very popular material with a lot of applications in power electronics
  etc. Its birefringence behaviour was measured using the THz Time-Domain P
 olarimetry (THz-TDP) technique. We have also studied Metamaterials of diff
 erent types for different applications. Many of the applications require u
 s to design these materials on a computer first using COMSOL(R)-like softw
 are and then fabricate these. We will mention some of these Metamaterials 
 fabricated and studied by us using THz TDS. Polarization-dependent transmi
 ssion through an array of subwavelength apertures can have potential appli
 cations in channel multiplexing for wireless communication. Specifically\,
  in the sub-Tera-Hertz frequency range (~0.09-0.3THz)\, such metasurfaces 
 can be deployed as Intelligent Transmitting Surface (ITS) for 6th Generati
 on (6G) short-range communication. We studied THz transmission through suc
 h surfaces. We developed a near-field scanning THz Microscope for this pur
 pose. Several interesting Metamaterials were studied using this unique THz
  Microscope of its kind. These results will be discussed in the talk.\n\nS
 peaker(s): Prof. Shriganesh Prabhu\, \n\nBldg: Department of Electronics E
 ngineering\, Committee Room\, IIT (BHU)\, Varanasi\, Varanasi\, Uttar Prad
 esh\, India\, 221005
LOCATION:Bldg: Department of Electronics Engineering\, Committee Room\, IIT
  (BHU)\, Varanasi\, Varanasi\, Uttar Pradesh\, India\, 221005
ORGANIZER:jagadishstudent.rs.ece19@itbhu.ac.in
SEQUENCE:50
SUMMARY:Terahertz (THz) Spectroscopy Development With Applications to Metam
 aterials Studies Using Far-Field and Near-Field Techniques
URL;VALUE=URI:https://events.vtools.ieee.org/m/376686
X-ALT-DESC:Description: <br /><p>Terahertz (THz) spectroscopy offers large 
 opportunities in the study of natural as well as artificial materials of v
 arious kinds. We have developed several Terahertz (THz) spectroscopic tech
 niques to study different materials\, from single crystals to metamaterial
 s. We have developed different new designs for the THz sources. We will br
 iefly mention those. &nbsp\;We studied THz optical properties of t-Se\, Bi
 <sub>2</sub>Se<sub>3</sub>\, and Vanadium doped [100] &beta\;-Ga<sub>2</su
 b>O<sub>3</sub> using Terahertz Time-Domain Spectroscopy (THz-TDS). &beta\
 ;-Ga<sub>2</sub>O<sub>3</sub> is a very popular material with a lot of app
 lications in power electronics etc. Its birefringence behaviour was measur
 ed using the THz Time-Domain Polarimetry (THz-TDP) technique. We have also
  studied Metamaterials of different types for different applications. Many
  of the applications require us to design these materials on a computer fi
 rst using COMSOL(R)-like software and then fabricate these. We will mentio
 n some of these Metamaterials fabricated and studied by us using THz TDS. 
 Polarization-dependent transmission through an array of subwavelength aper
 tures can have potential applications in channel multiplexing for wireless
  communication. Specifically\, in the sub-Tera-Hertz frequency range (~0.0
 9-0.3THz)\, such metasurfaces can be deployed as Intelligent Transmitting 
 Surface (ITS) for 6<sup>th</sup> Generation (6G) short-range communication
 . We studied THz transmission through such surfaces. We developed a near-f
 ield scanning THz Microscope for this purpose. Several interesting Metamat
 erials were studied using this unique THz Microscope of its kind. These re
 sults will be discussed in the talk.</p>
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